I agree with you on that!
Other than that... well, anything that adds realism really! Those glowing sticks the crowd use during the intro, I don't know if any team use those irl? It has been used, but to see it in every arena, every game isn't realistic. I would much prefer the lights and effects to give a more authentic atmosphere. The light from those sticks doesn't even look good.
if it's meant to look cool for the kids, maybe, but they will be disappointed when they attend a real game and find that it's not how it's done. 😌
Another thing is that I can't change goal song in Franchise Mode. Some teams have really bad songs when they score, so bad that I sometimes pick other teams because I can't stand their (in game) goal song. The real ones are generally okay at least.