The vault should have rerolls

Well no.
You can’t completely discount crafted items, especially when 2x embellishment is intended to be part of the ideal set. Full myth OR crafted would be only 10 weeks.

I don’t feel a need for completely RNG-less gearing, but a way to cut the worst-case scenario off the RNG would be nice. Still think that it’d be fine to reroll a vault, but you lose a pick each time starting from the highest ilvl.