You're the first pro digital person I've seen on these forums that hasn't touted features that don't actually exist given no word from Microsoft as eventual fact, so good on ya.
The thing is, I don't think the features gained specifically from DRM on the disc are worth it. Digital lending and selling can still happen - there's no reason it can't, because guess what, digital goods already have DRM on them. Microsoft would just have less control on when that lending stops - which they arguably shouldn't have control on in the first place, given we still have the right to let a friend borrow a game as long as they like. Even without 24 hour checks, they could still accomplish limited lending by simply timing the game-time, online or off. That would take some serious ToS breaking in order to circumvent, which I think is enough of a deterrent for most people. Digitally lending and selling being intrinsically linked to their 24 hour check is a falsehood, as far as I can tell.
The only things that seems legitimately lost to me is the game sharing thing - whatever that may or may not have been - and the ability to play without the disc you bought, neither of which persuade me personally. As for a promise for the "digital future", well, I've been living it with Steam for years now, and lemme tell you - not all that different from the good old analog past. Aside from no PC discs on my shelf, there's not been any sort of revolutionary idea that's made this DRM actually an added bonus. I mean, if Valve hasn't found some amazing way for DRM to directly work for and aid the consumer, I'm really not confident Microsoft could.