Not sure exactly how true Kendall's statement is. But I think there's some truth there. And it explains the trade pretty well:
Kendall Fuller: Leaving Washington is “a little emotional” – ProFootballTalk
“It wasn’t like, ‘Oh, the Redskins, they were looking to get rid of me.’ They just saw this as the guy they needed to bring in. The Chiefs were bringing it to them like, ‘If you want this guy, you have to give up Kendall Fuller.’ All of them were upset that I had to go. It wasn’t like they were trying to kick me out the door. It was a little emotional.”