A main gun crit leaves your tank entirely defenceless against anything heavier than a halftrack. A T-70 can kill a panther or even a Konigstiger frontally if their main gun is taken out by a lucky, and entirely unable to be influenced.
Imagine a critical roll on infantry making them unable to shoot.
Something being "In the game from day one" is also not an argument in its favour. ColdTech was similarly in the game from day one, as were multiple terrible balance decisions which were rightfully corrected. There is a reason the game isnt in the same state it was in on day one.
Accuracy and penetration already serve as the "RNG" part of vehicular combat, further random chance is not needed, and adds nothing but frustration to players' experiences.
The t70 can kill a panther or kt frontaly with some extreme rng. The same extreme rng that makes gun crits happen. And if your guns goes out and you didnt cover or support your kt or panther its on you.
The infantry not being able to shoot is a bad comparison.
That cold weather condition was imo pretty intetesting. I understand it got removed but their was little rng in it. You could counter it with good micro and awareness.
And if this game is nothing but frustration because there is a very small chance you get an unlucky crit and ruin the fun for other is quite selfisch... go play something else its very simple.
To many crits and conditions have already been removed some good and some not so good. Next people dont want bounces anymore or missing shots cuz my tank is expensive, or heavy cover damage reduction removed cuz my nades didnt kill behind cover.