Why is everyone afraid to make a new kata with ground fighting?

Not the argument here at all. I could care less if someone were to create a new, groundfighting kata. Or if they find groundfighting applications in classical, stand-up kata.

But, trying to force-fit historical connections where there do not seem to be any is deceptive.
"In case you ever wondered what it's like to be knocked out, it's like waking up from a nightmare only to discover it wasn't a dream." -Forrest Griffin