You still have yet to give a reason why using wineboot instead of wineprefixcreate is a bad idea. If you're pursuing a course that is off the beaten path, you shouldn't expect for things to work out of the box, and if things are improved for the majority of users, it's a good thing. A simple sed /wineprefixcreate/wineboot/ will 'fix' your problem, while complaining and asking for wineprefixcreate to be maintained/updated will not.
