@ajfirecracker Nothing you said is incorrect, but Dredge and Storm are still both aggro-combo decks that get better in specific, if different, versions of the Gush-Workshop metagame. I don't group them together for any reason beyond that. It's a very top-level classification. Oath, with which I group Grixis Control, Bomberman, UR Control, etc, is a combo-control deck that gets better in another specific version of the Gush-Workshop metagame. My overall point is that we have four supertypes: Workshops (1), Gush (2)– the long term best decks which wax and wane and may not actually be the best in a given moment– aggro-combo (3), and combo-control (4). I labeled aggro-combo Dredge/Storm because those are the two most important examples of the supertype. Likewise for Oath and combo-control.
Dredge and Storm's grouping is not an argument that they have similar interactions with the metagame. Rather, it is just an argument that they are fundamentally alike: high velocity, high synergy. And I don't think there is a contradiction here. Two decks can share fundamental principles, but, as you point out, by virtue of different tactical considerations, interact with the metagame in different ways.