I am not sure whether to take seriously your poor comparison of a game with real life development or just nod and view this as a troll post. Since I don't mean to insult you, I'll stick with the latter. Actually, I should copy-paste your post somewhere on my harddrive, it's a killer either way.
Well, think of your own post. You didn't (couldn't or don't want to) argue the point I made.
Not true. I'm not trying to step on your toes, don't get feral on me. But translating your point into sports to make this more obvious: You are saying that you would not be able to improve (physically) by training alone or with / against other people unless you get to the Olympics and compete against the best. - But WoW is different, it's not a sports, bla bla, yea I know.
I am living proof that playing on an average rating against average players is a very good way to improve. I don't need super-experienced top-class players to tell me what to do if I can recognize my own mistakes and do it better next time. Improvement is self-improvement, and even when you get to play with the best and get some title, what will you do once you're playing with mediocre players again? There's nobody to tell you what to do and then what, you gonna suck? Maybe, maybe not. But you will certainly not be able to help other players who once like you sought advice to improve themselves because your range of knowledge does not encompass a critical viewpoint on gameplay.
In low rated arena many mistakes are made on your enemies' side, yes, doesn't mean you can't spot them, use them against the enemy, use them to your advantage, but in order to first realize any mistakes you'd have to have a critical mindset, look at things and wonder why that happened, why that choice was made, were there other options etc. The key to becoming "the best" in anything is posing the question "why?" and learn from its answer. Like in real life. Awkwardly!
The problem with your idea that playing with average player is the same as playing with best player results in the same result at same pace is quite wrong to be honest. Let's take real-life reference, as what you actually do in World of Warcraft to reach the "perfect arena player" -status, is same as in real life.
You do basic study in elementary school to high school n' such (leveling)
You start to learn about the vast world when you get your first job (gear grinding)
You start to learn about the the world more when you get your 2nd job with better hours and better wager (first steps in arena)
You reach your so called "dream job status", where you will stick yourself for the rest of your life (2.2k forever duelist players)
--- if you reach further than this, you're actually trying to improve in life (or WoW) ---
You learn and practise a hobby that takes your interest and start to teach it to others (2.4k+ r1 duelist but soon Gladiator)
You take this hobby and start doing it as a part-time job and/or try to reach full-time through financial status to support your complete attention to it (Gladiator)
You reach the status of hobbyist, with a capitalist asshole social and financial status (Rank 1)
You stop doing the hobby, when you realize that everything you left behind was a chaotic, capitalist-driven emptiness and you gained no life-changing experiences during it (everyone who's quit and those who still have r1 s8 bongwater wintraded title)
Or if you don't realize it, you will have a vast row of r1 titles in World of Warcraft fansite called Arena Junkies
To go through this list faster, you can tag along with someone good, like for example a person who's at the 2.4k status. If you somehow manage to tag along the capitalist hobbyist, you will go through this list a lot faster, because he can tell you what to do and what not (reduce the required trial n' error) and potentially reach the point where you realize that it's not going to bring you happiness or life-altering experiences if you are rank one, or investment bank leader with money gaining money -attitude and so on.
To reach the Gladiator position faster, you can try to tag along a great player. It reduces the amount of trial n' error required if you don't.
If you can't tag a long with better player than yourself, you can always do the trial n' error way, but don't expect anything fast.
Small update, there's now been several places where it's stated that the rating to have a ranking (same as in previous seasons you had to have 20 games played) is now 1000. So with 1000 rating granting a rank, we can calculate the "new" Gladiator and Grievous Gladiator cutoffs. Numbers are of 15.1.2014 and I can not update them all the time, but I hope sites like arenamate.net would update it.
EU 3v3 - #1132 - ~2261 rating
US 3v3 - #960 - ~2220 rating
EU 3v3 - #226 - ~2500 rating
US 3v3 - #192 - ~2414 rating
I like this change with the rank being granted at 1000 rating. Although, it is something that needs to be changed every season, as ratings inflate and deflate and activity goes up and down. While 1000 rating might seem "fine" now, it might not be fine next season or season after that.