S!
6DOF can be used anyways in form of a player created content after 4.10 and beyond. Nobody complains except those without TrackIR or similar, but again everyone can save up for one or have we forgotten childhood when used to save up for something you really wanted?
So TD has made the choice not to include 6DOF due the cockpits and tremendous work to fix them all. Understandable also the viewpoint of getting a crapton of shinola raining on them if releasing 6DOF without fixing cockpits. Fair enough.
The choice is yours, you can use player made content for it or use the normal view system and stop whining about 6DOF