I don't think you understand what binary in this context means.
Just because the original game had RNG, doesn't mean it wasn't operating on a yes/no basis(the threshold for it was simply different).
The number of hits is also a tuning point, rather than a proper mechanic.
There are things(such as damage bonuses) that already work on a per-ability, rather than per-hit basis, and if it comes to worst, the damage/proc logic can be bundled into a single hit at the end(independent from animation).
Finally, just because another issue exists(like requiring a larger rebalance), does not mean that a solution that requires it to be resolved cannot be investigated or implemented. It simply means that the other issue has to also be addressed, and it's quite likely that it will be looked at regardless anyway.
