Of course it is a subjective statement, but it is based an opinion based on objective facts. I am emotionally tied to the Red Sox as much as any person that I know, and I always love going to Fenway to see the Sox. It is hard for me to be totally objective about Fenway, so I have relied in large part of the opinions of guest of mine who aren't no Sox fans who aren't big baseball fans who have been to games at a number of different venues. They are not emotionally tied to the team, so they can be objective about their experience. My wife and other non Sox fans that have attended Sox games with me unanimously do not think highly of Fenway. The tradition and history are just emotional things for us that add to our subjective assessment. It means nothing to people without the emotional ties to the team or ballpark.
As I said in an earlier post, ownership spent millions renovating the place, because they needed (not wanted) to enhance the game experience for the fans.