It still doesn't make any sense: if they're not going to use bodies of water to cool them in space, they can not use a body of water to cool them in the middle of nowhere. The same with the solar panels
If they were talking about putting them on the moon I'd get it; use the moon itself as a giant heat sink. Latency isn't ideal but for applications where that's not a problem (like AI; 3s round trip isn't meaningful in the context of a chat session) then why not.