Truly all fan bases are about the same. Most think the call for their team is the right one and most think the call against their team is the wrong one.
This leap of logic is a small one indeed.
In every NFL fan base there will be those who cheer rivals injuries and those who feel sorry for the player. There is an even larger group who act like they feel for the player but secretly are elated for the injury. I'm thinking this group might contain even more than we could guess.
It is all just people, no matter what team it is. Some each one of us will agree with. Some we won't. Some we will despise, and others we admire.
None of us should be surprised one iota at what football fans say and do. People are ultimately very predictable.