Exactly. If everyone was already standing, what would the crowd have done after a three pointer or when the team needs a little juice, wave their hands and bark?
Close games, lead changes (either way), changes in momentum, play of the day shots, sitting in front of an obnoxious fan of the other team, absolutely stand. But standing the entire game is just standing.
This is stupid. I've been to 100s of games over 40+ years, and stand more than most people but never stand even close to the entire game.