While giving your opponents extra resources sounds bad in a vacuum, Commander is a political format where doing so can actually turn into an upside
I, for one, aside from collecting cards, want to learn how to play the game
Later sets A Charizard Pokmon card from a later set will typically not be as valuable, but can still sell for a good price
Not just limited to the plane's five castles, there are as many stories on Eldraine as there are people
Modern format has been graveyard-reliant by its start (remember Tarmogoyf being the threat of the format for 5+ years ) and even in 2022 many tier 1 decks (Murktide/Living end/etc) relies on GY
When used to full effect, the Alpha Deathclaw can lock your opponent out of being able to play for any spells at all