While the commitment to 'interactivity' at DL remains, IMO, it has shifted its focus. Targets of engagement seems to be the primary difference between past 'interactivity' and recent attempts at it.
Interactivity can either engage the mind and imagination; or the raw animal senses. The latter seems to be the path of choice for the recent (and upcoming) additions to the Park.
The 'shoot-em up' style of Buzz (and possibly Midway Mania) offer little to the imagination. The attraction's appeal appears to lie in catering to the animal reflexes in us all. Once you leave the attraction, all you really can remember about it is your score.
Other forms of 'interaction' as noted in the original post appeal to more than just instinct and reflex--they appeal to imagination. The Swiss Family Treehouse was one such attraction. The Indiana Jones Adventure is another. Many interactive elements on PLOTSI are well-done, and have much to offer both the imagination and the physical sensation (however, it should be noted that PLOTSI is really just a glorified playground for kids, so its attempts at creative physical and mental interactivity should come as no surprise).
When we view 'interactivity' in its different forms at DL, it seems clear that attractions that offer little to the imagination have a far less chance of entertaining guests for longer durations than ones that engage both the creative and the physical senses.
There is nothing 'wrong' with having shoot-em ups like Buzz, or Midway Mania; but I would hate to see an entire Park full of 'em. With Disney's new fascination with digital projections and video effects, we may see a shift in the proportion of these different forms of 'interactivity'--possibly a shift in a less 'engaging' direction.