I wasn't aware of the discussion being about patients perspective. Anyway, I do understand the reason behind having different platforms, sizes etc etc. but I believe that utilising at least a universal driver would not hurt anyone. Also some companies (ie: Neoss) have moved toward simplifying and reducing inventory.
Imagine going on holiday, getting a loose screw, finding a dentist and then hear:" we don't have a unitorx in stock, but we have a 1.2 hex, 1.2 square, unix rip, Neoss driver, slotted.............sorry we can't help you.
Less is best and right now I believe there is probably an overload of components. Think about the recent angled screw channels solutions: I'm aware of three companies offering that and guess : they all use a different driver. Don't know, maybe I'm just tired of switching drivers LOL.