Since the difficulty is between LFR and normals, there's no shared lockout between normal mode, loot is personal and it's open to cross-realm, 10s are encouraged to bring friends or pug some instead of cancelling. It's just like WotLK 10s, without the loot drama but with cross-realm and flexible raid size option; I'm not sure what else Blizzard can do really...
I think it's a nice solution for that niche (although I am going to hate doing that mode too to get trinkets, tiers and missing pieces; but on the bright side I can do it with friends who only do LFR).