In reality, teams should use everything possible to have a home advantage. I don't know of a fan who's more concerned with being comfortable than helping the Texans win.
I couldn't agree more, for this time of the season. If it is early in the season I have to say I think it is safer, for the fans themselves, with the roof closed. Having sat there for an early season game once I can tell you that the heat seemed to be bad enough to actually make some of the BULLPEN fans physically ill.