[SaS TrooP]

I would not be that over reacting :P
As I play SPMBT, CIWS and VIRSS systems seem to be quite ineffective for top attack ATGMs like Javelin - like already in the game.

I would generally not say that Russian CIWS is not working completely - rather than NATO supplied weapons strike the top of the vehicle so often that its covering angles are way insufficient.

About that ERA protection... oh boi, problem appears to be that many Russian vehicles are empty. There are pictures of literally egg-fillers put into those bricks but could be propaganda - either way though, brick is empty. This kinda shows the scale of corruption or low readiness of many units, not neccessarily that certain gear does not work.

What I would recommend however is to probably "bring back" the deadliness of MANPADS systems. It was modified couple of updates ago and now it is super hard task to shoot down aircraft/chopper with these missiles, even after a couple of hits. This does not apply only to Strieła like systems that always suffered from poor warhead load, but MANPADS in general. Recently replayed one of Lundstrom's scenarios with Swedish Army and engaged Hinds with RBS-70s. Not a single one was downed with a single missile, while several were hit 5+ times to even assure any dammage (!)
I believe Ukraine War pretty decently proves that underpowering those weapons could be wrong...