What BW said is a partial answer for FSU.
The one thing to know about FSU is that we don't mandate that artists work on any particular project. In fact, historically, the FSU team has been more like gatekeepers rather than content creators. Joe Schmoe community member has typically been the main content creator. This has changed somewhat more recently, but the contribution model is still the same.
FSU and non FSU artists alike work on whatever project they find interesting. All finish assets go through the same scrutinizing before being put into the main MediaVPs.. even models done by FSU artists. (But since we act as gatekeepers, we've just gotten very good at making sure our assets will be viable replacements from the get-go.)
What this means for this thread is that your question is somewhat misdirected. It's not up to FSU artists to upgrade everything about FS2, it's just up to us to organize and make it reliable. If you want cockpits for ships in FS2, you should ask the community as a whole (this includes FSU artists) to make cockpits, or make them yourself. Find someone who is interested in such a project to make it happen. This might be someone in FSU, it might not.
FSU isn't opposed to cockpit models, but to my knowledge, none of the current FSU artists are interested in spending time on such an effort.