I just drag and drop from the audio folder. Most of my audio tracks are all one long track start to finish because I'm just like that. and they are all clearly labeled in the audio folder.  If they are not whole I would just bounce to create a whole track.
As I've said , transferring to another DAW is super easy if your projects are like mine. But then the problem child will be those who's works of art are giant conglomerations of bits and pieces. I feel sorry for those folks as there is going to be no easy solution.