Arma 3 used to do beta releases on steam. Its under library options to go that branch or stick to main, maybe they are saving bandwidth Im not sure.
I expect devs attitude is more like TF2 and that all of it should be taken as good fun. Im kinda sympathetic to changes but hard not to see why pro gamers upset when you literally screw with their livelihood.
Im sure they will iron it out, literally they are record as saying they would avoid new gun models for fear of upsetting game balance, well.....
Ive managed to get banned for smurfing after getting like 12 kills and I was grouped with 3 globals who understandably carried the game. I turned off mouse invert and was trying to get practise, didnt want anyone to rage when I miss up shots so put down Im low rank. All I did was cover smoke with a cz or similar, dont push, walk with crosshair right places but seems I cant reason with admin who just lost a map.
They just insulting themselves to ban such low kills, I apologised anyhow but nope Im the bad guy seriously