I'll bite on this, this is likely a troll, given the nonsensical "restricts your ability to make changes to your system". But I feel like it could also be a genuine "I don't like this because I don't understand how this works".
I mean yeah, XOrg works well, for an implementation built on a system made in checks notes 1984, about 5 months after the original Macintosh 128k.
Honestly, I'm shocked it took this long for Android to actually get something like this. Given how long iPhone has had it. Then again, this is also Google. So you can't really expect copying to happen quickly, if at all.