The link in the article for Blacksky (blackskyweb.xyz) has a dark pattern that attempts to get you sign up for bluesky instead of blacksky. Odd.
The bigger issue is funding - currently appears to be VC funded (seed round 2023, Series A 2024), so they'll want a return at some point. Voilà, enshittification.
The biggest selling point - portable identity - is a mirage because the current providers do not give you the cryptographic keys to your identity. So they can simply lock you down, and your 'identity' is done.