IMO, fewer people, fewer sponsors, fewer characters, less excitement, less innovation, and a smaller relationship with the car you drive on the street.
I don't think I've ever heard anyone say that, ever. I hear folks complain about it, but that's a far cry from saying they want it to fail.
For example, I'm guilty of saying that the perfect Nascar race is when I watch the start and fall asleep on the couch, waking up when there's 15 or 20 laps to go.
I received a PM shortly after posting in this thread, and I'd like to quote part of it.
"There are some who are constantly thinking of ways to improve, this takes a lot of time, knowledge, effort, and some money. Racing was built by innovators.
Then there are others who watch the innovations closely to see its progress, before they try to build there own version.
The last group is where the problem lies. This group of racers doesn’t think it’s fair that you have something that they can’t buy at a speed shop. So they turn to the officials with their complaints about how this isn’t fair."
Since there are way more people in the last group, that's who gets listened to. When innovation is discouraged, nothing improves.