As much as I would love to have an official pristine copy, should songs like "Deep Purple" or the original "Hey Little Tomboy" really be shared with the general public?
The general public will not give a damn about the release of a lost 1977 Beach Boys record any more than they do about the fact that it exists and is unreleased. As for the rest of us, the whole point is that it's flawed, confused, confusing and vulnerable. If they're going to start airbrushing it, why even bother. Some of us liked the awkward nerdy type, not everyone had to be prom queen.
I think the greatest argument for it's release (besides the fact that Still I Dream Of It needs to be heard by anyone with even a passing interest in Brian) is that it does feel like something missing from the official discography rather than a belated addendum.