It is much easier for humans to rationalize hardships around them as something they can control. Nobody can control a monkey suit's decisions, specifically when they exhibit the emperors' new clothes type of issues. This is before you get into any of the usual resentment relationships that occur when companies restructure around their own self interest.
Try not to let the anon vitriol get to you. I understand that's quite a ridiculous thing to ask someone when their job/career is on the line.
Low performances usually go on a performance improvement plan (which almost half who enter it graduate it successfully to stay).
People on PIP didn't want to take their chances and just took the offer.
This does not mean all 150+ people were low performers, some of the brightest, most intelligent engineers and designers left, and I do miss them greatly and hold so much respect for them. Many of them were dear friends of mine.
For your attacking comment, I'm engaging my actual profile and name, and you're engaging with a throwaway account that's less than a day old, so I don't know who's more spinless.
Edit: thanks for removing the attacking language that was previously at the end of your post.