Yeah that approach really resonated with me as well. A very straightforward concept: how much capacity do we have for higher risk behaviour? And in this case the cut-off for higher risk may be “yeah we’re not going to hockey games for a while.”
But if after every hockey game 20 hospital beds get used up, that's as risky for the health system as allowing a restaurant to serve uncooked chicken for an evening.
Do we need to call in military hospital ships? Maybe we do stuff that reduces communication of disease, reduces driving to reduce road accidents, etc.
Where I live it was communicated more than once, “avoid doing riskier things this holiday season because the emergency services you expect to be available may not be.”