C'mon, that was only ONE bug.
Yes, but one "holy crap how did you miss that" bug is a lot different than "buggy as hell" which implies many bugs. I've never seen any release version of ForeFlight that could be qualified as "buggy" much less "buggy as hell".
In fact, even the early betas we get are usually more stable than the release versions of other software I've used. These guys are good!
And because of that responsiveness, even a cautious user should feel comfortable with a .0 version, maybe just waiting a week in case one of those rare bugs is found. IME, If you don't see a .0.1 version in a week or two, there probably won't be one, and no bad bugs were found in the .0.
But never will you see a released version that's "buggy as hell."