I think the officiating was terrible this year... ditch replay going to central location & going over every other play.
I don't think the central location had anything to do with it, and if the end result is getting the calls right I really don't care.
If they wouldn't have overturned the Dez Bryant catch because of some replay technicality it would have been a travesty, those are the kinds of calls you need to get right.
I'd be interested in seeing some figures about average length of replay, but didn't have an issue with it this year and for the most part think this is just a convenient issue to blame.