I'm sure states that depend of foreign tourism don't like that.
BTW, I'm curious does the US have 2 week quarantine rules? Because the border really isn't closed. The land border is (Except to Trade), but if I can find a flight into Murika, I still can. Not that I'd want to. The trick is, I have to Quarantine for 2 weeks when I return.
That's the biggest issue involving NHL and MLB returns. It's actually a lot safer for the Blue Jays to play in Toronto than Dunedin, but they need an exception for the 2 week rule.