It allows for both consumer-to-consumer and business-to-consumer models to operate
These decks already run two mana redirects like Untimely Malfunction, or even spells like Return the Favor, so they'll be champing at the bit for more protection options
And you've got tons of card draw in reprints like Enchantress's PresenceEnchantress's Presence, Sage's ReverieSage's Reverie, and Snake UmbraSnake Umbra
When you play Commander, you end up having way more decks than when you play other formats
White players who like to complicate combat have been making use of Angelic Skirmisher for years, so a version of that targeting just one creature but at half the cost might generate interest to some
To support this popular multiplayer format, Wizards has designed four new Commander decks that are thematically related to Commander Legends