The only problem with pads is when your at an outpost. When you are at a starport, there are multiple of each pad. At an outpost, it's one medium pad, and becuase small pad ships end up only being early game (I think vulture, dolphin and DBX are the only ships which serve a purpose 'late game'), it means you always get Pythons and FDLs, FAS' and Gunships hogging the solo medium pad.
If the type 6 was a small pad, along with the keelback (and while we are at it, the type 7 a medium), we'd have more small pad ships to use instead of the medium, creating an interesting dynamics, so I take the better medium pad ship, and wait it out, or use the worse small pad ship so I can dock.