Exactly this. I have been to a couple rooftop parties and very few people are there to sit and watch the game. Even the unobstructed views leave a lot to be desired. Assuming the signs lead to additional revenue which helps the Cubs field a consistently competitive team, the rooftop owners will benefit from the excitement around the team more than they will be harmed by any obstructions. Out of the maybe 10 times I've done a rooftop, I think only 2 of those times were people including myself watching the game. The other times were networking events, company outings, and a couple of bachelor parties. That said, those events happen because you CAN see the game, even if no one watches. The appeal for a corporate event goes down when you can only see the right half of the infield and half of home plate because a giant scoreboard is blocking the rest. I'm not taking the rooftops side, I still say [expletive] them, but I believe it will make a huge difference for the rooftops.