Or should not dicier/diciest, as the only acceptable forms, imply that dicey itself is illicit?
Dicey's comment on one aspect of this change is profound.
It is a dicey point.
The funding of the whole scheme appears to be extremely dicey.
Those in the trade knew that things were dicey.
That would lead to a very dicey situation.
At the top end of the spectrum the industry was even then testing very thoroughly, but at the bottom end the testing was pretty dicey.
These are the people who support this very dicey form of racing.