We will use the last 4 games as an example because that is probably what he is talking about.
In the last 4 games Sammy has 11 catches for 182 yards.
Odell Beckham has 26 catches for 354 yards.
Jarvis Landry has 22 catches for 345 yards.
Yes if I was him I would probably be mad also if I'm getting half of everything even though I'm working just as hard for it.