I already knew the new xbox would be the next gaming console. It seems like they went for the non-obvious, and wanted to talk about the other features. The games are going to be the draw for gamers, and I'm sure those will be just fine.
from what i've seen this appears to match the ps4 in every way - even down to the architecture. the only difference is they glossed-over all that and decided to focus on the ways its differentiated..
also, this issue is nothing new and is certainty not unique to microsoft or the xbox. i think its fairly well understood that there's going to be a change in this area as the way content is distributed continues to evolve..
whatever the actual implementation is, i'm pretty sure it wont be as bad as you're implying (... removed the ability to buy, sell, and lend games) and will probably be standard across the industry - and structured in a manner as not to totally decimate the second-hand market..
[1] http://www.polygon.com/2013/5/21/4348916/xbox-used-games