If you accidentally ban linux users in three[1] different[2] banwaves[3], then linux was only halfway supported in the first place, even if they overturned (almost) all of those bans.
I think the real reason they did it was EA's financial situation. Since money is tight, the amount of resources they were willing to put into real linux anti-cheat probably dropped to "none at all," and now we're here. Otherwise other cheater-prone games like Counter Strike, Overwatch, Halo, The Finals, DayZ, Hunt Showdown, etc would have probably dropped/blocked linux by now too.
Hell, I'm mad Apex Legends did it and I have very little time invested in that game.
I really wish game developers would stop with this kernel level anticheat nonsense that doesn't even work. Everyone in every gaming community just points the finger, people that play games using Easy Anticheat say Battleye sucks and vice versa.
If kernel level anticheat actually worked, there would be a definitive answer to which games have good anticheat.
Ik the 2 major games that supports linux is apex(not anymore unfortunately) and i bet overwatch and titanfall will do it next, additional note: dont mind rust not allowing linux I find it fair for the devs,atleast rust gives you a choice of a mac.