Sure - you're exchanging depth of power for breadth of capability. I was just pointing out that it isn't balanced in the slots available but rather in the access to those higher level spells. Which actually makes sense in terms of the fiction as well - the multiclass caster should probably get shut out of those higher power level spells because they're focusing on breadth of knowledge/ability rather than depth of knowledge/ability.That's still diminished power at the higher levels. A lot of us do play games into the teens and level 20.