I don't think that's very useful. You're saying basically treating anything except mastery as "I forgot". That's too much practice. It also doesn't take into considering that you are better of doing your reps later in the day (ie close to your sleep cycle).

Sure, you can sort of use SRS here, but it's suboptimal and probably will leave too many cards in the top priority "learning" pile causing too much load, or you train incorrectly.

Still, I agree that this is MUCH better than NOT doing SRS if you don't have an alternate tool with a better algorithm.