Can't run the ExplosionPower/ExplosionRadius NBT-Tag for PrimedTnt!

I don't know if this is a bug or an feature, but the command:
/summon PrimedTnt ~ ~ ~

{ExplosionRadius:100}

or /summon PrimedTnt ~ ~ ~

{ExplosionPower:100}

doesn't affect the tnt.
Hope it will be fixed/added.