I'm not sure comparing the ~50k etron to the ~100k for most of its life S, makes a ton of sense. Even moreso if you limit it to one market only- and one where large sedans aren't a hugely popular segment.
In 2020 audi sold almost 50,000 etrons worldwide.
Tesla sold almost 500,000 EVs worldwide- and mostly 3s.
VW is probably the least-terrible legacy company in terms of making actual efforts to compete.... but keep in mind they are the folks who in 2013 said they'd be #1 in EV sales by 2018.
Ford recently said they were going to double their planned production of the EV F-150... all the way up to... *checks notes* 15,000 trucks for all of 2022!
That's... less than 2% of total F-150 sales BTW.
The competition isn't really coming. They don't have the batteries to do so, and won't for years.
That's apart from the fact the actual cars are years behind in a slew of engineering ways. (Go check out Sandy Munros teardowns of both Ford and VW evs to see how much legacy garbage they're wasting $ on with bad engineering for an EV versus tesla)