Mmm hmm, except that a seed phrase isn't a will; that's like saying the Lambo parked in [pick a whale]'s garage is as good as a will.  They're both considered assets, though of different kinds of course.

Imagine 5 kids and 20 grandchildren in 2040 discovering a seed phrase plate that ol' grampa crypto left behind.  That's when those relatives start looking for the real will.