Waiver pick question

Bonjour all of you,

Quick question about waiver selection...
In an Alphabet league with only last names, how is waiver rank determined considerering teams are absolutely 100% guaranteed to get all their draft card players?

should be random

From the game rules:

If there is a tie for an amount of weighted points, the Waiver Priority spots are randomly assigned to those teams.

Does it matter, though, since everyone is restricted to their own letter?

Why is waivers even happening, this should be a non waivers league because of the last name/alphabet restriction.

Forgot to mention that letters B et M are free agents at waivers...