The only reason that would make me fear from an antitrust judgement splitting Android from Google is that it may lose the Google contributions to AOSP.

Google is more and more showing that they really don't want to contribute to AOSP.

So for me, Android should be split out of Google. Maybe the other Android manufacturers will start contributing to AOSP, and maybe Android will die. But let me be honest: if Google keeps going this way, I will move to an iPhone (and I've been using and developing for Android forever). We may as well try the split, and if it fails I'll end up with an iPhone anyway.

Note the post title is incorrect. See https://news.ycombinator.com/item?id=45160975. Android patches are being delayed in general, not only for AOSP.