If I thought that downloading and installing software onto your computer is the way to go then I'd be helping make it better.
I don't. I think 90-something-percent of future Bitcoin users will be using it on an iPad or mobile phone or on their computer in a web browser.
I'm sorry you think 0.5 is worse than 0.4, but you're in the (vocal) minority. Nobody stepped up to support the 0.4 wxWidgets-based GUI, and we've got several people working on the 0.5 Qt-based GUI, so I'm confident switching was the right decision.
I don't think he's complaining about the qt framework. he's complaining about the new layout + useless features added to 0.5. like the overview tab, and csv export