I think people make these arguments because they want it on other platforms, frankly. They'd probably be able to bite the bullet of a sequel doing less than its predecessor if it was on a platform they had more interest in, so they can be more content with it just existing.
People are weird like that. The fact many publishers bailed on Bayonetta 2 already gives the impression publishers believe the game would be a failure. The only one who got involved despite this is Nintendo. Somehow, people find that troubling instead of the game being put in purgatory.
Makes ya wonder, would they be okay if they erased every acclaimed game that wasn't a million seller from history?