No they are not. One hardly notices them, and almost never at the right time. If you need a Jumbotron, you’re not easily seeing them. Never mind the fact you don’t see or hear them during the plays which is the point.
Excuse me but the cheerleaders are just as easy to see as the players. If you can’t see cheerleaders from the stands, I don’t know what magic let’s you see the game any better. They perform on the field during breaks in the game, and they move around to be seen from different locations. If you object to the need for a jumbotron or binoculars, why attend the game?