Good outcome, requiring good faith on both parts. My question, as a feminist, is why you as the woman and daughter-in-law had to take over kitchen duties instead of the son, and why you and not your husband and sister-in-law had to take the lead on the hygienic distancing and sheltering?

If things had gone south with your in-laws, you would have been to blame and would have borne the brunt of it. Your husband should have been the point person and should have insulated you from the potential conflict.