No it isnt. This isn't just Colts haters. This is a widely ridiculed thing that people rip on the Colts for doing.
There's a reason people **** on the Colts for it. Its not just bias.
By "people" you mean crazed Pats fans, sure. No one else cares at all and other teams do it, like they said. No one else cares.
Sorry to break it to you but if you go around the country (living in different areas as I have) the Pats and their fans are disdained in many cases, more than any team or fanbase these days, and it can be for this exact kind of thing. And seeing it for years now the craziest part is the complete lack of awareness of it, as this post hints at. I think it's the victim complex that does it.