While I don't think you can properly "uninstall" Google+ and Hangouts, you can "disable" them, which makes them inaccessible. I don't think you get updates pushed for disabled apps, either.
It also stops their services, and whatnot. It wastes room inside of the ROM partition, but not inside of the user data partition.
I'll also be abandoning several paid apps that I've bought over the years that are only available on the Play Store. It's going to be hard extricating myself from that ecosystem.
Android correctly gets a lot of flack for having a fragmented user base which makes it a security and developing nightmare, if this feature were to become standard it would help everyone.
It should also be noted that they are giving away unlimited cloud storage for photos and videos which makes leaving some free space for updates a lot less painful. You probably won't fill your phone with app binaries, it's the photos and videos that take up lots of space.
That seems a little short sighted. You seem to assume the only way an update can fail is in because of a software bug, and it's just a matter of not enough testing. If the phone loses power for some reason, or one of the hardware components is misbehaving, I would rather it not brick my phone. This is the industry standard, because shit happens, and CYA is a good thing.
> Sorry, not buying this. If the phone had expandable storage, then yeah maybe, but this is the 16GB story all over again (woops, 11GB actually and less after the Play apps updates).
Buying what? I'm not selling you anything. Is there somewhere I tried to convince you it was ultimately the best solution? I simply explained it had an additional (likely primary) purpose that you were not accounting for.
[1] Current list of these unremovable apps on my Nexus 4: Google Docs, Google Calendar, Google Spreadsheets, Google Presentations, Cloud Print, E-mail, Google Now, Google Drive, Google Earth, Google Indic Keyboard, Google Keep, Google News & Weather, Google Play Books, Google Play Movies, Google Play Music, Google Play Games, Google Play News kiosk, Google street view, Google talkback, Google text to speech, Google+, Hangouts, Google Wifi connectivity, Youtube.