This doesn't touch the more broad topic of asking the dead to intercede.
(inb4 "It's asking the living to intercede. They're not dead." I'm not arguing their state with that statement. You know what a woman is; you know what I mean by dead.)

I almost find the broader topic unnecessary to address because--of all the dead--Mary is the go-to GOAT, the frequent, the common, the mentioned, the Hail Mary.

I would go so far as to say the broader idea is held fervently primarily for the sake of being able to ask Mary to intercede.