Well, it depends on when they cancelled it and on how much it cost. That thing didn't sell THAT poorly, but Square, as usual, was aiming way above what's realistic. Estimates on Steam alone put it above 1 million copies sold. You can assume PS5 was at least as good.
Based on those same estimates it actually outsold Guardians. Which is an absolute travesty and I blame anyone who hasn't played it personally.
Well, then you're my enemy, because that game is great, Marvel connection or not. In fact it's a fantastic companion piece ot the third Guardians movie, because they're both really good at their respective medium but they are pushing radically oppposite worldviews (one is a Christian parable, the other a humanist rejection of religious alienation).
And yeah, holy crap, they made a Marvel game about grief and loss and managing them without turning to religion and bigotry and it was awesome and beautiful and nobody played it and you all suck.