Self driving cars are indeed still not there. But the right question to ask about those is who has the highest chance of getting those working first? There are a few companies working on this problem. Tesla is by far the biggest of those companies and they are throwing some serious money at the problem. It's not a safe bet to make but the odds are still pretty decent that they might get there before anyone else does. Their strategy for this seems pretty sound. But obviously it's taking longer than they hoped. A much less safe bet to make would be betting it will never happen.

As for SpaceX, their reputation for getting things done is rock solid right now. If they manage to get starship going, that will be a major leap in launching capabilities. But even just getting the star link network operational, or delivering people to the space station have been enormous accomplishments already.

The only thing that's remarkable about this announcement is how unremarkable it is relative to Elon Musk's other accomplishments. It's a radio on a satellite that connects to a phone. Doesn't sound like rocket science. I'm sure the antennas etc. are amazing but that is essentially commodity technology that he's simply launching to orbit. Doing that cheap enough that stuff like this makes sense to even consider doing is the true accomplishment.