He obviously meant on a hypothetical NBA scale.
By the way, I agree that FTs are a bit of a problem, but mainly with the atrocious guys. Meaning the guys that shoot like 5% or less. If you raise it to even pitiful, he can shoot about 35-40%, which is acceptable for a lvl.2 on a scale from 1-20.
There were some interesting ideas thrown out in the Italian forum, including incorporating a bit of FT training into every training that involves shooting, so you avoid the problem of having a 40% 3-point shooter shoot 20% from the FT line, which obvisouly does not make any sense. Or decrease the scale for FT skill from a 20-point scale to a 10-point scale.