This site has been around for 20+ years, it was was sold around 6 or 7 years ago, to people who quite clearly are far bigger Cards fans than Suns fans, and this has always been a Cardinal centric board. I like the way they run things, the community and moderation hasn't changed much since they took over.
The Suns community here is strong but not particularly large, during the Suns dark ages (and ESPN killing their forums) a few Suns communities died out, I don't think it would take much effort for someone associated with the team to track the popular Suns sites that remain and cherry pick random talking points that put the franchise in a positive light.
I think you are overthinking things...