hw -- i agree that jennings was uber dumb for not batting that ball straight down. we see it all the time in this situation -- why are defenders trying to catch that ball? padding their stats? do they get a bonus for interceptions?
on that specific play - the regular refs probably come to the same conclusion. but it likely comes sooner and with more conviction. plus all the other calls in the game are faster. and they might call pass interference when tight ends get tackled.
the real effect of these replacement refs has to be gambling. who's betting on games with these refs?