That's not accurate. DOD suppliers weren't banned from having "any commercial dealings" with Anthropic. They were banned from using Anthropic for their work with the DOD.
That's true legally, but the government's public statements did initially very explicitly present this as a ban on any dealing.
"Anthropic a Supply-Chain Risk to National Security. Effective immediately, no contractor, supplier, or partner that does business with the United States military may conduct any commercial activity with Anthropic."
Presumably, according to the defenders of the designation in this thread, this was an innocent mistake that doesn't indicate any political intent.
The way things work, the CIOs and CSOs of these companies just implement blanket bans, so it really is effectively a ban for any use. Source: I am at one such company.
