I am not offended.
I haven't seen the sunny knockout. The stores are filled with the single red and hot pink. There are a few doubles here and there. At least I am not tempted to add to my rose collection when getting groceries and supplies at the big box stores.
The new Giant grocery store has single pink knockouts blooming in a planting in the parking lot. They look more cheerful than the average median planting. People are surprised that they are roses. One neighbor and novice gardener asked me if the azalea she bought was the same as my CC roses. Well....no, but it is pretty anyway.
I think people are attracted to a catchy name, not a plant. At least people who "can't grow roses here" will see roses growing here!