I would say, a lot of it has to do with style?
Even if something is necessary - and I have now idea if it is - but even if, there are better, more friendly and respectful ways of dealing with all of this right?
You suggest you don't even know if it's necessary to cut staff, but if you had bought Twitter, currently losing money for 3 years in a row, what would you do to turn the ship around more "respectfully?"
I think most people who are whinging about this -- especially here, on this forum -- are people who wouldn't think twice, if this were happening at any other big "Web 2.0" company. And, in fact, they'd probably cheer on the "decisive" and "courageous" leadership. I think they just don't like Musk, and don't like that he's bought Twitter, because they believe the narrative -- as I've seen many people suggest -- that it's going to somehow veer hard right, and become 4chan 2.0.