Overruling the parliamentarian is quite rare. I think the last VP (prez of senate) to do it was Hubert Humphrey. That’s not to say Biden wouldn’t do it, but he’s someone who’s relied on the comity of the senate for 36 years.
Tough call, but my point is that it isn’t a casual, common practice at all.
Bummer wouldn’t hesitate to twist Biden’s arm clean off.