If complexity were the problem, BMWs would be death traps, especially the iDrive models.
It is more about how prodigious they are. There are just so many cars out there, statistically there will be issues arise. I would bet though that the number of incidents as of a percent of the model on the road would be microscopic and statistically in line with other models.
I used to drive way out in the boonies, before cellphones, with a handful of spare parts in the glove box, and be pretty confident of solving the most likely problems. If you break down in the boonies now you are probably SOL if you’re out of cellphone range.