Dave is reporting what I speculated in the thread after it happened, essentially the Vince shyt is so ugly + no Punk and no Brock means they felt they needed the starpower AND to shift the mainstream conversation. I think people need to remember that in any creative business, the business will always come before the creative.
All that being said, they could've have handled the transition better. Having Seth come out and basically say "pick me pls" while sounding like the last girl at the dance without a partner and Cody not giving the reason he actually thought he should wait besides "counsel" hurt the possibility of smoothing over what was going to be a controversial decision regardless (but ultimately it will still be successful in accomplishing the intended goal).
EDIT:
I think if Cody said some variation of
"Everyone can see that I was more than a match for Roman last year. I'm not the only one who's had Roman dead to rights, either. But we all know Roman can't be stopped until the Bloodline is dealt with. We've tried to defeat them from the outside to no avail. Perhaps the answer then, is to have them addressed from within..."
IF YA SMEEEEEEEEEEEEEEEEEEELLLL
I think that reasoning would have played out better. Still have Roman retain but the Bloodline abandons him as a result of some kind of new level of unacceptable fukkery and then he heads into the rematch with Cody by himself, where Cody completes both storylines.