Yeah, moving over your Xbox 1 saves is neat and all, but when the Backwards Compatibility is next to crap (see how poor Fable and Ninja Gaiden Black play for two good examples), why would you want to do so in the first place?
I guess 'cause I assume they will eventually get it right. But for me, if I can't move my saves, I'm not going to be playing Ninja Gaiden Black or Fable on the 360 anyway, because I sure as hell am not going through all of that again. But the problem is, I have a hard time continuing to play on the Xbox because I know it could look better and be played with a wireless controller (and I'm holding out hope that I'll be able to move my saves, but maybe someday I will just start over, but I know I won't...damnit, there I go again). So, they wind up just collecting dust.
Also, I'm going to be avoiding Black and Getting Up, two games I was very much looking anticipating, because I don't want to get started on them then have to start over when they do become BC. But if I knew I'd be able to move my saves, I'd buy them right away and start playing immediately. This'll go for future Xbox releases, too.