I have a serious question about this one too, as I asked similar earlier:
If the country is drowning w/ cases or there are only a few, what extra risk do you have by going on a plane from A to B, getting to the hotel, and probably having similar restrictions to what the USFS is trying this weekend? Have any of you been in an Uber in the last 9 months? I don't feel particularly unsafe when I have to sit in the back seat and both I and the driver have a mask on. Hell, some of them have even put up protective barriers. Some skaters might be taking Ubers or other forms of transportation to the rink as it is, and they may be around more people at the rink or at home (family still going to work, whatever) than they would be at Worlds if they are told to stay in their rooms or have little movement outside of practices and competition.
Not one skater is sitting at home if they are able to skate. They are going to the rink daily. I don't know why there's this belief that the Swedish atmosphere or air quality is going to put skaters and coaches at risk automatically. That's not how it works. All it takes is one person ANYWHERE you're at, but getting to the rink is pretty low-risk all across the board IMO.
If they are going from A to B (again considering we've been told repeatedly that flying is not an extreme danger), how is this any more of a no-no than anything else they've been doing at home? They are not locked up in their houses.
Some of you try to phrase it like the skaters are being forced to compete. The Canadian skaters (yes, the ones with so much more logic and common sense according to some), all wanted to compete as well at Nationals according to Sadovsky, and you better believe the top skaters still want Worlds to happen. Italians, Russians, Japanese, most of European skaters have also gotten through events even if their countries were experiencing increases in numbers.