I think it has the potential to water down the fields. I think it is a "shot across the bow" aimed at usac. The USA sprints vs. the WoO back in the late 80's separated the fields, not good from a fans pov and don't see how it helped anything.
I would give a thumbs up if there was an event where the WoO winged sprint drivers had to race with and without the wing on the same day. The WoO racing group likes to blab about their roots lets see if they want to go back that far.