In theory yes, I'm not really a fan of BBBOTS and I love Big Brother.
But some days, the producers have been struggling to fill an hour (though it could be they're missing out the interesting parts in order to show as much bitching and plotting as possible) so a 2 hour show could very easily mean a much less interesting show. Although I miss live feed it was often boring.
I like the idea of 90 minute episodes and 30 mins of BBBOTS.
I don't remember Diary Room Uncut, not sure if that was pre BB6 or just past my bedtime

but it does sound good. There are housemates I've hardly seen in the diary room.