Gamestudio lacks manpower to do the needed steps ahead to catch up with Unity or other engines. Seriously have a look at Unity's lately doubled (!) team number. There's no way Conitec's small crew can compete here. Does anyone actually know the exact number of guys working on 3DGS? I always had the impression that it were around 5 brave little coders doing all the work...

When considering Unity's new features I'm also thinking of them maybe trying to get in a higher cost range or at least offer a new and more expensive edition at some point which offers all those fantastic 3rd party features. I at least seem to fail to understand how 1200$ or how much it was per licence should be able to pay for all that fancy stuff...