Geez louise. If my remark needs explaining, then you have little sensibility or little sense of humor. Possibly both. Could this article not have waited until Father’s Day? It’s not like anyone’s career depends on when this appears in Ars.
1. Mother's Day isn't universally celebrated on the same day.
2. Some mothers are biologists/biochemists, and might well enjoy reading this
3. Nothing in the article prevents a person from celebrating their mother
Tl;dr: you're right that it doesn't matter when something is published, but that argument works both ways.