I do agree with the part where software moves, dependencies yada, yada... I'm a developer myself.

But.. this is different. They eliminated a perfectly working game, where they didn't have to invest a minute of labor to get it working on Linux. The only thing they had to provide was the .so-file (for EAC) when publishing to Steam.... Valve did all the work to make EAC compatible on Linux, yes, on user-level... but still... it fucking worked.

Punishing an entire userbase, because other assholes (assumably) used Linux for cheating is discrimination. Even if there were no cheaters at all... it's still discrimination... because it used to fucking work.