As others have already noted, trashing Bills players is cheap/easy way to drum up engagement for people whose job is basically just peddling hot online sports takes dressed up with some made-up (sorry, "proprietary") statistics. People like the PFF guys, Aaron Schatz, Cian, etc. know they're playing to an audience and will post this stuff hoping for a reaction. The best response is to not engage. I've muted or unfollowed most of these guys and haven't missed them. If more people did the same, they'd probably move on to fanning another flame.
To be clear, I still follow plenty of football people who are skeptical about Allen and the Bills. But they tend to be more credible/established and willing to acknowledge when Allen/the Bills play well (e.g., Dan Orlovsky, Geoff Schwartz).