I think Riley was frozen like Han Solo in Empire Strikes Back. That was his excuseSure, he deserved it for playing time.
I used to be a huge Kohou supporter and cheerleader.
However, when he chose to watch Josh Allen continue for a 1st down, rather than you know tackling him. I couldn't wait for him to no longer be a Phin.
Same with Riley against Mahomes in the playoffs.
The 2 biggest games of the season and Kohou watches Allen and Riley just slaps Mahomes on the buttocks as he runs by.