I don't think the iOS-ification is overblown at all. The fact that unsigned apps are met with increased hostility, and increased hoops to jump through to run them, demonstrates this. It's not hard to imagine in the next couple of macos releases that homebrew stops working, or requires grotesque hacks like local building/linking to escape the signing requirements.

Do we honestly think apple is going to reverse course on this? I highly doubt it. Open platforms are not their m.o. for many years. They've let the walled garden around macos have too many cracks and holes, and they're going to recapture those users that have taken advantage.