My idea, right or wrong, is that a beat writer's job is to convey information about the team and the games. A columnist's job is to give opinion. I'd prefer a beat writer that tells me what's going on with the team and occasionally provides me with info I haven't otherwise come across. GT gives me game and team info but veers off into the columnist opinion stuff. I also don't find much of anything new about the team in his articles. I get just as much or more info on here.
Just to clarify, I wouldn't be any more or less pleased if he was a cheerleader/homer. Its a personal preference and maybe not a realistic one in today's journalistic format. Maybe his style appeals to some. My preference is Joe Friday's "just the facts."