Hoping to have the country roaring back by easter 2020 didn't and doesn't strike me as evidence of someone taking COVID19 seriously.
Was it incorrect that part of Trump's motivation for the travel ban was racism (his own, or institutional)? I don't think we can really answer that question definitively at the moment, and we may never be able to. But again, this is another example of "the boy who cried wolf" syndrome. Maybe this time, his nationalistic, xenophobic language was rooted in a sincere, scientifically rooted belief about how best to protect the country. But when you've used the same kind of language throughout your administration to belittle, insult and denigrate, it shouldn't be much of a surprise that people interpret the same sort of behavior as more of the same.
The US media is almost always deferential. They lob softball questions at politicans, allow them to lie to the cameras without challenge, give outsize credibility to administration statements, and so much more. I grew up in the UK in the 60s, 70s and 80s. No US politician would survive the media climate in the UK back then.
Probably you're thinking of media actually calling Trump out on his lies, and yes, when they eventually got around to that, that was a little different. But then, he was a different sort of president, so hardly surprising.