Sorry if the reference to Covid deaths is upsetting, but I've just seen the headline on BBC News: Couple dies 12 hours apart with Covid-19
I know that couple is gramatically a singular noun, but it semantically references two people, and it sounds odd to my ear to say "the couple dies", as if it's a single entity that has perished, when two people have died.
I don't think I'd bat an eyelid at couple die from Covid-19, treating it as a plural.
Do singular verbs work in these examples...
Family dies in boating accident
England's football team dies in plane crash
Hotel staff dies in horrific fire
Theatre audience dies in bombing
That's probably enough death! 