Edit: even if they can't host their own site yet, the embeds/links aren't a great sign
That being said, I think this is more a reaction to a business need/market opportunity that exists rather than a true attempt at a platform that is free for all to use.
Seems to be, headed by a Chris Bedford (apparently a The Federalist Senior Editor?).
https://thefederalist.com/2021/01/29/finding-creative-intern...
It's pretty obviously a response to the Parler incident, so I wouldn't expect them to have the infrastructure actually up and running yet.
There is a component to this where they have to have "good faith", but eventually this will go to court.
https://www.aclu.org/other/freedom-expression-aclu-position-...
Just don't break your providers' terms of services when you're doing so. There's always an upstream vendor.
You can't stand on a soapbox and whine about not being allowed to stand on a soapbox. These people think they're oppressed because they can't make death threats and plot deadly riots on federal property with impunity. Suck it up, put up a reverse proxy and host it on your own hardware. If people can run dark web marketplaces, you can sure as hell complain about the liberals being mean to you on your own hardware.