I think that might be what the NFL is after...let them have their freedom, but also over-saturate the fan so it is not so meaningful. After all, this is about brand power. If EVERYONE is doing something special, the few "celebrants" can't capitalize. If EVERYONE is celebrating, then the few bad exceptions are marginalized. For instance, Von Miller's pelvic celebrations weren't just noteworthy for their content, they were additionally noteworthy because they were trampling the perceived prohibition against certain types of celebration. Von Miller got additional name/brand recognition, but the NFL got bad PR! This year, if a player does something "over the line" it is the player that gets the bad PR and the NFL brand looks reasonable. After all, they have allowed celebrations, but not those types of celebrations!