I can see how this license can be beneficial to pinball. Wrasslin's main demographic is young children. This could potentially do well in certain locations, where a younger generation could wind up giving pinball more of a chance (I'd be surprised if this doesn't hit Chuck E Cheese). It isn't all about the basement market, yah know?
I also wouldn't sell the game short just because of theme. Every show I bring my WWFRR to, someone who isn't a wrestling fan is offering to buy it, and at least a handful of people who are "above watching wrestling" wind up really enjoying it.
Personally, WWFRR is like having a GI Joe or Transformers pin. It's a nostalgic icon of my childhood. I don't have a desire to own a machine with the current wrestlers in it, BUT, I don't think I'm the target audience for this license*. It's likely kids and operators.
P.S. *=...unless Randy Savage is in it.