As a "recovering smoker": This is a really bad idea. Look, it's a horrible vice, we all know that. Active smokers even know that. RWS provided completely segregated areas--that one didn't have to walk through--for smoking.
Couple that with this: There are a lot of people who drink too much at games (which is the main reason I don't go anymore), and I'll bet a fair portion of those also smoke.
So now, we've got a bunch of folks who (1) have been drinking before and at the game, (2) can't smoke, and (3) are in a rowdy atmosphere.
Bad, bad idea.