Have you reported this bug? Based on the series of steps you need to create this scenario, it is possible no one else has encountered it, so it may not have been addressed at all. It probably has nothing at all to do with laziness on Adobe's end, though they are unlikely to release a new version every time a newly discovered bug gets arises.
suggestions to Adobe - Wishlist
Yes, I reported it a long time ago.
It's very common for folks to resize the dialog box. It's also very common for users to resize the stage area.
This is a pretty drastic user interface bug that should have been squashed in the beta stage, in my opinion.
As far as I can see, the release of CS4 should have been squashed until they had it right--but apparently stockholders need the new income from a new release more than users need a release that works correctly. Its numerous issues were enough to keep me from purchasing it. CS5 will be subject to the same scrutiny before I chance getting it. There's only one way to get companies to stop this sort of practice... don''t support them in it.