I think if people took off their ISU vs Iowa goggles for a second, they would realize that while this tweet really isn't that bad on the surface, that's not the issue. At least for me.
If a person was employed by Car and Driver Magazine and had a Twitter account stating they worked at that magazine and it also said 'I love my Audi!'...that's not a great look because it's showing bias when he's employed by a company that is supposed to be non-biased. If that person then tweets something saying something like "All crossovers that Mazda has suck" that's an issue as well.
If this KCCI guy posted this same stuff on a personal account not associated with KCCI this is non-issue. I just asked my friend who works at KARE-11 up here what he thought of this and his response was 'Big no no. Why doesn't he have a personal account?'.