Should The NFL Investigate This Referee For Hip Checking Player During Game

So the refs can hand out flags but the Players can't call out Refs for dumbass calls or antics like this? You can't tell me these refs don't have a vendetta against some of these players or teams. We see it all the time but you can't challenge those calls so we always have to see it after the fact on social media. Do you think the NFL should investigate this? The flag was for taunting on Cassius Marsh and he called it out, because if a player did that to a ref they would be suspended or fined.