This happens repeatedly and isn't anything new. This happens because there are a bunch of mentally ill people running tech companies that want jobs to be about "belief".
They don't want older people in tech because they want to empire build with the latest and greatest insecure technology.
They want to create frustration engines with poor engineering practices they older tech workers won't put up with it. The goal is to make technology more difficult so they can slowly re-train you to go to other people and hate all technology. This is a real thing and has burned out so many software engineers you'd be shocked at how many of them don't know their manager was the person who purposely made their job difficult to burn out another software engineer.
They want strange conspiracies about what the software actually does that older workers don't need to put up with (because some of it is illegal). If you're good at reading source code and figure out what they are actually doing in the source code, in some cases companies blatantly selling software that doesn't do anything they are selling their customers on. In some cases people inject code into a repository when no one is looking, so they can run side businesses using the company infrastructure. There are a ton of older tech workers who read every line of the source code and when they start asking too many questions people freak out and fire them to maintain a conspiracy.
This happens for all sorts of reasons.