I would like another enhancement in the concentric mate.
I would like a checkbox inside for "lock rotation", where bolts and washers and similar would not need a parallel mate and they would still be fully constrained.
It's true that "For each mating condition, it would mean another set of parameters would have to be solved", but it's more time to attend the assembly resolving or an involuntary rotation screw which produce a complete rebuild of all view in the drawing ?
Anyway, Solid Edge and Pro-E have this lock rotation option in the concentric mate that use standard plane, that they don't have an impact to the assembly rebuild time.
Give me your opinion.