Smuggler's Copter is the most dominant card (by percentage of decks that play it), and while it's featured in both of the big decks, it's also propping up a bunch of second-tier decks like Mardu / RW Vehicles and Bx Zombies, so getting rid of the looter scooter might actually make the format less diverse, as odd as that sounds
Rot Farm Mortipede Gaining access to two keywords is nice, but Rot Farm Mortipede is still firmly in Limited-only territory, and it's not particularly great there, either
While similar in their designs, these two cards fall on opposites sides of what I believe merits a reasonable unofficial general for Commander
That's way more than enough for it to be a popular card
Even the most avid lovers of this format get annoyed at the Absol () Cessation lock decks that aim to remove cards from the opponent's hand early and use Energy Removal 2 (Crushing Hammer) to extend their leads
Its a much cheaper, much better Verdant Force, and as a result, it sees play in a ton of different green Commander decks