Copying good ideas has been a part of TC design as long as there have been TCs. That's why they all look the same these days.
Awesomatix has obviously stumbled onto something that gives the car an advantage in certain scenarios. It doesn't surprise me that other companies are going to try and figure out what that is and incorporate it without making wholesale changes to their car design. I'm surprised it's taken this long. This is what I expect from car designers. Kudos to them for acknowledging that someone has built a better mousetrap and trying to address it.