Not seen too many shredded “worm gears that drives the shifting” in meachanical systems… I’m just messing with ya. 
What I will say - and this is just my opinion on the matter - is that it seems that when something goes wrong in an elctronic system, it tends to be “terminal” or race-ending, whereas with mechanical you can bash it around and still get some gears working and finish the ride…
For me that’s the only reason I run mechanical - but I will be getting the SRAM wireless when they release a 1X11 version 