How Hard could fixing 'Hardy' be?

Ubuntu 8.04 is coming on the 24th of April 2008. As is typically the case in the past few years, many millions of Ubuntu users across the globe are either waiting or, in some cases, trying out the pre-release software, reporting and fixing bugs.
Beta 1 of the upcoming version of this popular linux distribution came out a few days ago and, sadly, despite the fact that 8.04 is an LTS (Long Term Support) release, it seems that it’s going to be — by far — one of the buggiest releases ever to come out bearing the name ‘Ubuntu’. In my tests with ‘Beta 1’, there are hundreds of major bugs involving the brand new (and largely unstable) gvfs subsystem for GNOME, application compatibility with PulseAudio and general system behaviour, responsiveness and stability. Having said all that, Ubuntu 8.04, at least in its first Beta is significantly faster than its predecessor.
Having less than a month before the ‘final’ comes out begs the question: is Ubuntu 8.04 going to be delayed so that it matches 7.10 in terms of stability (remember this is supposed to be a Long Term Support release), or is it going to be released on time with a x.xx.1 version coming later in the year? Why has Canonical abandoned the ‘few things at a time, done properly’ approach that it long had with Ubuntu since the beginning? While desktop linux is still sorely lacking the usability foundations that would enable it to compete with OS X, stability was never one of its problems; unless ‘Beta 1’ represented a codebase quite far from what Canonical is working on for release — sadly this is not the case — Ubuntu 8.04 is probably going to be a feature-rich update, but a huge disappointment in the areas where linux traditionally shines.