Not sure if you realize this, but that "American media" you're referencing is actually a British comedian. So I don't know how much you can read into that report that the American media is suddenly paying attention to what's happening in Japan. Remember also that media rights for the Olympics are held by NBC Universal, so many other media outlets have little interest in the Olympics. And obviously NBCU won't want to say anything bad when they already know they're likely to struggle to gain viewership.
That all aside, it's tough for Americans, particularly sports fans, to have an appropriate view of what's happening in Japan now. We played sports through the pandemic because of the money involved with television rights, but there were also a lot of safety protocols in place in comparison to the "playbook" for the Olympics which doesn't seem as secure by comparison. And now, despite our collective incompetence and mishandling of the virus early on, our vaccination numbers are climbing and many of our sports stadiums are opening back up to full capacity. So we're a little perplexed that Japan is still struggling to the extent they are (my basic understanding is that a lot of it is internal politics and a lack of trust in the country's leadership) and that the per capita death rate from COVID is still higher in the United States than it is in Japan. And their numbers have been dropping over the last month since their previous surge.