I bought a VW Golf several years ago. Sales guy showed off user-replacable zero-screws bulbs as a major improvement. Which was sort of true, since my previous card, Ford Focus, required unbolting and removing headlight to replace it's bulbs...
A major improvement would be LED headlights which have a MTBF that is so high that they can essentially last for the lifetime of the vehicle. Zero "bulb" replacements. (LED headlights exist BTW, and I'm sure there are VW Golf trim levels that include them nowadays)
The problem with LED headlights is they cost a fortune. And you can't have a standardised aftermarket replacement. Of course they're nice if nothing wrong happens. But with old cars, eventually it will fail. Meanwhile for classic lights, you can polish the glass, maybe reflector, put in new bulb and it will keep working forever.
MTBF is great for the manufacturer, but not for the individual customer that gets one that fails prior to the MTBF. It is a mean value, after all.
Oh God - flashbacks to trying to replace a blown bulb in my Focus. "This will be easy". Two hours later and some bleeding knuckles later, took it to the garage for them to swear at.