What happened to Technic?

I know this has been discussed to death and I may get downvoted to hell but I am legitimately wondering, what has happened with Technic, and why its steady and silent downfall into what we have today? I have a few thoughts - all of which could be wrong - it's just my personal opinion and experience, not a matter of fact, so please bear with me. First, the gradual but noticeable decline: which I'd say sort of started with the Zetros in 2021. I say this because, despite being RC and featuring...