At least from what I saw the game had a huge amount of hype leading up to its launch and the thing that kept people from buying it was just playing enough of it on Game Pass. For some players it was too short and everything they wanted to accomplish was easily done with Game Pass shortly after its launch. For other players like me we bounced off of its tone while playing it. The stop motion animated intro felt like a bait and switch going into its game play, and I had a bunch of uncomfortable feelings about cultural appropriation from a Montreal studio trying to capture a "deep South bayou" aesthetic and failing at some of the subtleties, from what I saw.

Expedition 33 was released across multiple platforms simultaneously.

SoM was an Xbox/PC/Game Pass exclusive for a year.

It's not a perfect comparison.