Barring the omission of the CDC being wrong for mundane reasons, the possibilities you listed (CDC right, CDC wrong and lying, CDC wrong and biased) are in fact all the possibilities. Reading this article does not appear to have actually restricted what you think could be true about the world, at least not enough to be worth mentioning!

I mean, yes, the possibilities you mention are interesting and LW-relevant. But this article actively avoids any actual information about why the CDC is against travel restrictions - possibly a consequence of the author's extreme confidence that they're right.