Yes. That same Dat Protocol was renamed to Hypercore and was governed by the Hypercore Protocol Org. Now it's governed by Holepunch, a company that's "backed by" Tether, so it's a subsidiary I guess, just like John Carvalho's Synonym.

Fun fact: John Carvalho's comments on some podcast that they will do a decentralized Twitter alternative some day (probably was thinking of using Hypercore back then) made me realize it's possible, and then I discovered nostr.