the refs do not have access to slow motion and zoomed in replays during the game.
If you do not see the slow motion zoomed in replay, would you even notice the bad calls in real time?
Solution - get rid of slow motion replay on plays that are not reviewable, only show slow motion plays on TV on reviweable plays (scoring, turnovers, catches, OPI/DPI) etc.
Level playing field for the fans and the refs, seems simple to me