Your commander determines what colors you can play in your deck, and so, while mono-colored commanders may seem like they'd be weaker since the card pool is more limited, some mono-colored commanders are among the best in the format
We may have left Bloomburrow for a while now, but rabbits remain a popular aspect of Magic: The Gathering and Commander
Snow Villiers While lacking some of the downside of some similar creatures, you also have a capped upside on a middling cost creature without evasion who can be rendered impotent by destruction of other things
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
Dedicating that many slots to a combo win is risky, given how fast Standard is right now, mind you
Are you a fan of any of the Final Fantasy games these decks were based on
