This sounds cool from a tech-nerd perspective, but of course it all is pretty futile if we don't get emissions under control. The video says 10 gigatons/yr by 2050. Our 2019 emissions were ~36 gigatons. I.e. even if capture is successful, it needs to be accompanied by aggressive emissions reductions for us to even get to neutral, let alone reversing damage. I'm guessing Musk had some thought process around the expect…
The emphasis here is on some people.
Observe the morons who think they are clever/funny "rolling coal".
https://www.youtube.com/watch?v=PK6Amk4Hf4Y
My personal belief is that all governments should implement carbon tax/trading schemes which are either revenue neutral or 100% of the revenue is invested into carbon capture schemes.