Remember, aggro decks want to win the game as quickly as possible, so its best if your lands can be used for mana right away
If we think about creature auras using quadrant theory, enchanting your own creatures is something thats great when youre in a winning board state, reasonable when youre at parity, risky during the developing turns of the game and actively bad when youre behind
Domri can't riot something that was un-castable, like token creatures, nor can he work on multiple dorks
Among them, of course, a few Power Nine pieces
Within a Snow-focused build, it deals three damage, instead of two, providing additional value for its single-mana cost
Mire in Misery and Feed the Swarm were the first attempts at doing this, and while some people believe its against the philosophy of the color pie, I see it more as Magic evolving and adapting to the needs of the game after sticking around for more than 30 years