Personally I would prefer to see the team's official twitter feed resemble press releases. That is, attempt to keep it business-like, more neutral, and less inflammatory. Then if they really want to say something like that, an individual such as one of the PFW guys can comment. I would have thought that whomever the employee is that runs the twitter account would have been instructed to keep it more straight-laced, but perhaps I am wrong; maybe they considered the twitter audience to be one where they could let loose far more than on traditional press releases and press conferences.
Regardless, I think Breer completely overreacted. It's not as if what was stated was not factual. A little over the top, but it was a big win for the team against a division rival. It's difficult to not consider Breer's dour outlook for the team and his primarily negative comments about them for the last few months; it's tough to consider him an impartial and neutral observer at this point.