This is outright stupid to believe. I have been working for past 15yrs and worked across startups to Top 5(FAANG), and never seen or gone through this.
In all seriousness they mentioned India not mango fango. That said, my xp has been the same as you. Only time top performers get nixed is if a whole arm gets nixed and they get caught in the crossfire.
Most people struggle just to keep their head above water nonetheless come up with elaborate conspiracies of sabotaging other peoples careers. No one is thinking about you that much.
Now I'm on the flip side, in a place where I may have to put someone on a PIP. What can be done has been done. There is only so much support and positive guidance that can be offered before you have to provide them with a plan backed with consequences for not following through. It is an employee that I don't want to lose because of their contributions, but it is also an employee that I can't afford to keep because (without changes) they are a liability. Unfortunately, previous interactions suggest that I will have to cut my losses. Yet the ball lies entirely in their court at this point because they are the one who has to take ownership for the issues they create.