Well, I actually really like McDonald's.
I agree with you about supporting the intention of the work. If you are doing Shakespeare or the Greeks, you often have to "do something" with it to bridge the gap between the centuries, but if you try to make, say, A Midsummer Night's Dream a serious commentary on the nature of love, it's not going to work. It was clearly written to be a silly comedy, and should be performed as such.
However, generally speaking, the "younger" a play or musical is, the less "help" it needs, provided it was well-written to begin with. Maybe in the year 2400, Annie will need to be "reinvented," but it seems to do just fine on its own merits for right now. And even then, it should still be a heartwarming, family-friendly musical comedy. That's the DNA of the piece and trying to change that is just pointless - not to mention insulting to the authors and to the ticket buyers.
It was fifteen years ago that this production happened, but since it was brought up, I thought it was worth discussing. Anyway...