Only 2 problems
1. If they get 100 cars, you really don't get many runs at all (where WRX is 80)
2. It's CAMS and not AASA, so anyone without CAMS it's extra $$
They are still better than cold high performance road tyre like a AD08 - so it's not a major concern.
It's more the brakes and having no heat in them on the reverse Fig 8 given after you launch you can have some fair speed going and need to jump on the anchors. Lots of time to be gained there if you know your braking setup performance from cold.