This just isn't true lol. With the mastery levels you have at level 100, you really wont get that much use of sniper training, in fact it's a lot more useful at 90 than it is 100 due to our current gearing. The reality is the mastery needs to be redesigned slightly (I've gone over this hundreds of times in other posts so I won't go off track here). Sniper training will bring lots of utility for your team and honestly is going to be super fun to play around with.
I agree with you on a lot of topics but this one, no. Instead of just saying it's good to use for other things, can you give me an example where being able to say, idk, cast a clone in los, run behind a pillar, and then pop out again for the cast to finish would be better than (and it will be by the time everyone is full conq) 8-9% damage increase? You can call that you're using it and your team mates can take advantage of it while you're using it for sniper training.