catch-all to other existing SCCA racecars.

What I had really said was for car with current log books that have a home, I didn't feel SCCA should take into consideration those cars when developing the rules. As you said, it's about the crapcan type cars.
There have been enough instances where rules are opened up rather than vice versa. Since we're talking IT, a rather significant one was the ECU. Some might aruge it was really the washer bottle though.
I've always thought it's easier to give people something more in the future than take it away. Oh well.