Yes, I agree.If you look at broiler parent stock videos, you will see that none of them have pea combs and they look like Cornish X on a once a day feeding ration.
The first "Cornish Cross" were a cross that included Cornish, but then producers started breeding both sets of parent stock in ways that produced better broilers. The pea comb is one of the traits they bred out. By now, yes the parent stock just look like Cornish Cross on a diet, because that's basically what they are (female line selected more strongly for egg production, male line selected more strongly for some of the other traits.)