It was an older version of the deck then. But your not wrong on the questionable logic. (The deck then had a cmc around 2.6 but I increased that after a certain time, after seeing other decks doing better around 3.0. (around strixhaven release.))
(edit: oh wait confusing decks and versions....oh well....)
I remember when I heard that answer, I didn't think it would improve the deck....(and it really didn't in side testing.)
But It did let me think of some better angles....which eventually lead to the current version.
(Edit: kinda ended up being a combo version with my own twists in the end.)