True that. But I hope that's not your only take away from the article :) Still they updated everything else - so I guess they didn't cringe at that. Apple breaking UI standards, yap, they always do, gotta write on that too.
No that's not the my only take from the article ;)
btw. I've read once in a German Blog that using on iPhone the app Outlook as a frontend for Inbox works really well. Never tried it myself but it seems this Frankenstein setup works better than expected.