The combination of its +1 and -2 ability means that its hard to fight this card efficiently, and it gets better when you have graveyard synergies or discard incentives in play like Bandit's Talent
Fearing they would accidentally create another broken card
I know Geier Reach Sanitarium is generally cooler because it forces discard for your Megrim shenanigans, but for these kinds of forced draw decks, Mikokoro, Center of the Sea is just as good
Since all of our creatures except for Hinterland Sanctifier are legendary, if we can get some counters on Aerith and then have it die (which we can do by playing a second copy thanks to the legend rule), our team will get massive, maybe big enough to win with just one attack
While it might be proactive in dismantling artifacts or enchantments seen as aberrations of nature, it rarely disrupts the natural order
Resetting a game is never a good option when four peoples enjoyment is at stake