Follow the rationale:
1. Nation states ultimately control three key infrastructure pieces required to run data centers (a) land (protected by sovereign armed forces) (b) internet / internet infra (c) electricity. If crypto ever became a legitimate threat, nation states could simply seize any one of or all these three and basically negate any use of crypto.
2. So, if you have data centers that no longer rely on power derived from a nation state, land controller by a nation state or connectivity provided by the nation state's cabling infra, then you can always access your currency and assets.
All proposed space computing has an incredibly short orbital lifespan (less than 5y).
Every single space launch capable rocket provider in the world is financially, regulatorily, and militarily joined at the hip to a single government. No launches are taking place without that government’s say-so.
Also, space infrastructure is incredibly vulnerable to attack by nation-states as many others in this thread have pointed out.
EDIT: Removed unnecessary snark and fixed a mistaken double negative (s/dependent/independent) in the first sentence.