The difference, of course, is that all the luxuries that you lament as missing in Teslas are missing not because they can't inherently be a part of BEV, but because of the priorities: the money were spent on new technology, the technology that **inherently** provides these other luxuries that absolutely can't be provided by an ICE.
I'm not sure I agree with you on Tesla's reasoning that they are prioritizing luxuries that absolutely can't be provided by an ICE, as such. I think Tesla in many ways is not prioritizing luxuries at all IMO. Don't get me wrong: Tesla's provide luxurious off the line performance for example, but as you say, that is inherent to the BEV benefit. I think Tesla's priority has been creating a compelling-enough battery-electric vehicles for the masses, not so much luxuries at all so far.
And that, really, is fair enough. But for a buyer looking to buy a car with certain level of equipment, it creates a situation where compromises have to be made one way or the other (BEV drivetrain vs. ICE's in-car luxueries).
That said, I don't disagree with you on the fact that many of the ICE luxuries BEVs are currently missing certainly can and likely in the future will be added to BEVs as well. Many things in BEVs are missing because the companies that are good at that extra layer of stuff have so far been bad at delivering BEVs - and Tesla, good at delivering BEVs, has been bad at delivering that extra layer thus far.
Finally, there are some inherent benefits to ICEs that will be harder to solve for BEVs and are missing because of that: sustained high-end performance is one major thing. There are also some conveniences that are missing for similar reasons: super-fast refuelling, very long range etc. that are eluding BEVs so far due to challenges inherent to BEVs, not just because someone didn't get around to adding them on top.
While not everybody shares it, you longing for opulence in a car you paid $xxx for is understandable, but I must say a bit disingenuous, as you seem to be well aware of the Tesla luxuries that ICE can't match, but are apparently not willing to assign proper value to them. Hence your refrain about things that are "missing" in a car that costs $xxx.
What is the proper value? I see my views as more like brutal honesty, as usual, though of course my views = my opinions to be clear. I don't share the need that some IMO on TMC have to sugarcoat stuff simply because they believe in the BEV or Tesla mission. I'd rather look at it the way it is. If something is missing, I'll just point it out.
If something is missing from a car being bought today, then it is missing. A Tesla bought today will never get hot stone massage. If hot stone massages matter to you, you must consider the S Class instead of Model S. If both BEV drivetrain and hot stone massage is what you want, then you're SOL. That's just the way it is at the moment.
I think the best value I have assigned to BEVs are the Model S P85 and Model X P100D that I've purchased in 2014 and 2017 respectively. I also think Model 3 will succeed and the future is BEV (with some small, but all the time less likely chance with other alternative fuels).
In the meanwhile, it is a compromise that means for some scenarios I still personally look to ICE and do use ICEs. It will get less and less over time, I expect, but we're not quite there yet.