There are zero reasons to have any less concerns about ideological biases, side effects of the mechanisms used to implement ideological biases, or code backdoors in a US model, and a supplier of open (as opposed to hosted) model weights is not an active ongoing partner with whom the idea of supply chain risk from possible future divergence of interests is coherent, so that concern is either invalid or, if the “partner” is the model itself, simply a restatement of the ideological bias in the model weights concerns which, again, is not diminished by the model having a US origin.

And your speculation about future protectionist regulation is just that, not an actual fact.