I was watching, and having officiated football for 10-years, I always like to see the covering officials confer when a call is close...this was correctly done and they got the call right. The "referee" (as you say) nearest the play was blocked and the other "referee" had a better view.
As far as the current ("now ridiculous") rule governing pass completions, I like it.
What exactly was he blocked by? They didn't "confer" either, until one of the refs (not sure which one) blew his whistle as the Packer guy was running the ball out of the endzone. I hope you're not refereeing beyond the Pop Warner level!
ML/NJ