The brand split is the most exciting thing they have done in a long time for me.
More talent gets an opportunity to perform on tv (no more Ryder tweeting from an Outback during a show). There is less chance of injury due to the decreased workload for those who were working both shows. Most importantly, if they want 2 truly distict products, one can be wrestling focussed and the other can be the variety show that Vince seems to prefer.
Split PPVs aren't even an issue for me, if they happen. Either they add some network specials, or they put each show on a bi-monthly PPV schedule which gives stories time to grow.