There is nothing listed on the Keystone website in the recalls section. While this doesn't mean that there is not a recall, it's not being publicized by Keystone.
That said, Capital Grills are a "4 star stainless grill" and all that I've seen run in the $1000+ category. I can't imagine Keystone installing that kind of grill in a Cougar, especially when they refuse to install range tops with a "sparker ignition system"... Maybe your dealer can explain further about the delay....
You can check for recalls on Keystone products here:
https://www.keystonerv.com/owners/recalls/