As per your other comment, it seems things are already going in that direction, if developers are treating their plugins as being written in a format that could

As per your other comment, it seems things are already going in that direction, if developers are treating their plugins as being written in a format that could be described as "AU that is compatible with Logic but nothing else" or something like that (substitute for any format/DAW combination that the developer wants). So I would say that in a way it has already flown regardless of how we feel about it.