Ugly or not, if it helps draw in more spectators, then go for it (at least for one season). This new wing design is supposed to help bring more "passing" to F1. One of the biggest complaints about F1 (at least from a lot of American fans) is that F1 races don't really make passing practical/feasible as in NASCAR and IRL. Worst comes to worst, they try it for a season, ditch it, and go back to the more "traditional" wings.
I kinda like the idea of bringing back the slicks.