If you enjoy pve, keep playing WoW. If you pay $15 a month to play arena, you're doing it all wrong. Blizzard stopped caring about arena years ago. It's over, move on. Go play League, Dota, or Csgo. WoW is the new Farmville, Blizzard only cares about soccer moms and their money.
"Are warriors fine right now?" - are you fucking kidding me ? The class has insane damage ever since the dawn of the time. Zero respect for shitfaces who play Warriors tbh, I'd rather have kids who play RMD dominate this game until it dies, rather than have warriors win games at all.