Magic is unique and already has decades of history with set game modes, metas and very well thought out card pools people already enjoy. With how the cards are structured, people have also made other game modes from the cards, which adds a level of sandbox-iness that doesn't exist in most other games.

Cards aren't also typically power scaled to irrelevance, so people's history with the game usually carries forward to eternal formats.

Also, the community is already overwhelmingly pro-proxy for certain formats / game modes, and being pro-proxy is seeping into other formats too. Everytime shit like this happens with WotC/Hasbro, the default reaction from a lot of people is "I'll just proxy the cards".