...This is a car, it should work reliably. All the time. I don't like the idea of "release X.x broke Y, but they say they will fix it in X.xx. Soon....". Shades of Microsoft.
... What does Tesla need to do to make the sale?
The reality is Tesla doesn't need to do anything to make the sale because if you don't want it 10 other people are lined up who do. That's relevant because the car's core functions are light years ahead of anything else in the automotive industry and those feature sell cars - autopilot, long range electric driving, world class handling, instant throttle response, nationwide network of free high speed chargers for owners.
There is no other car in the world with this feature set.
Small issues with the user interface do not matter for sales in the big picture when nobody else can compete with the actual vehicle and driving experience -
they matter only on whiney internet forums like this one with a small group of OCD customers who need to find something to complain about because talking about Teslas on the internet is their social life.
If we lived in a marketplace with 3 or 4 Tesla competitors they might be more responsive in fixing little things.
As for your attitude that your car should work all the time - I don't know what you've owned in the past but if you are coming from the world of bread-and-butter sedans from Honda, Hyundai, Toyota etc. you don't understand the high end luxury market. Not putting you down - just telling you to put your expectations in line with reality or you're in for disappointment.
If the fact that your Tesla handles better than almost anything else on the road and will literally drive you down the freeway through heavy traffic during your commute while getting the equivalant of 80-100 mpg isn't enough to make you cough up your money - you should probably wait for these features to trickle down to mass market vehicles - though you might be waiting a good number of more years. Nothing wrong with that - I know plenty of high net worth individuals who drive Camrys (or perhaps a Lexus) because they can't/won't/refuse to deal with machines that have occasional issues and they are willing to put up with boring in return for 100% up-time (or close to it).
Also don't forget that the sample here is not representative of owners at large. Remember that cars as a whole are far more reliable than they were in the past, so being at the back of a reliability survey by Consumer Reports for the first year of production of a brand new vehicle company is not a bad thing.
And a lot of the big Tesla problems - drive units, wonky door handles, creaky interior bits, panel gaps - have been through multiple engineering revisions at this point and the new cars coming off the line have 75% fewer issues than the ones in 2012 according to something I read Elon Musk say.
My recommendation? Go rent one for a week from a private owner on Turo dot com. Be sure to get a 2015 or 2016 with autopilot. Then go put some serious miles on it. Autopilot is insanely great as is right now - go put a few hundred miles on it and see for yourself. The next generation will be even more capable. Such is life.
As for new features it is likely that the 100 kwhr battery and ventilated seats are coming soon - anywhere from a few more weeks to a year. Tesla won't tell you.
But the car as it is now is stunningly good already.