Er no, for the same reason that a runout E7 with some danger should be about 7a+ and a totally safe E7 should be about 8a. Clearly they’re not the same level of physical difficulty.
Applying the same “width” of sports grades would mean that a runout E12 with some danger should be about 8c+ and a totally safe E12 should be about 9c. Obviously again one of those is physically harder than the other.
