I pretty much agree, at least in regards to what Disney themselves have attempted in-house. And regarding REAL video games (not this phone drivel, rather games for systems like Nintendo and such) technically I wouldn't even say i can think of ANY good games that Disney themselves have made personally. Largely because there really haven't been many of those in the first place.
There have absolutely been some excellent games based on Disney franchises to be sure (particularly during the 80's and 90's), but Disney back then had the sense to hand their development off to a different company who already were video game developers knew what they were doing. Examples include Sega, Capcom, Virgin, Square(soft/Enix) and others. They were some of the more famous and good examples of companies that did some great Disney based video games (again Disney had little to nothing to do with their quality of gameplay, they just provided the franchises to use).