It's impossible to tell just from imaging a month or two down the road how "permanent" damage is. Yes, it's concerning. But we also don't know that it can't heal in time. Just because it looks like things we "know" on a CT doesn't mean we know how it acts long term.

Before you downvote me, think about all the reports of people with VERY low oxygen saturation that "shouldn't be" alert, talking, and feeling ok. That goes against everything we "know" as well, but it's very real for this disease.