After poking at the apps they tested with, the conclusion is: they wanted something that could run Access and Oracle client apps, and Wine just wasn't there yet. It still isn't, judging by my quick tests.
Given that the world kind of treats this as a must, perhaps it could be added as a criterion for a 1.0 release. Say, where's the existing page describing our release criteria? - Dan
-- Wine for Windows ISVs: http://kegel.com/wine/isv