I think they should have an accessibility option which makes the game easier. The game is intended to be very difficult and it's intended to be centered around overcoming difficult that seems overwhelming to many, that's the point of the game, the design intent, and I appreciate that the singular difficulty seeks to preserve that.
But there are also players with disabilities who cannot complete the actions required by the game within the timing required. Players who, the game is not difficult, but impossible. I'm sure that the developers would agree that these players don't have access to the intended experience.
An accessibility mode, which enabled easier settings (similar to something like Celeste's assist mode stamp) which clearly designates that this experience is outside of the original intended gameplay experience but exists so that some players are able to experience the game at all. If you're playing on this accessibility (assist mode) then you're not experiencing the game in the way that the designers intended (that should be made very clear) but at least you are able to experience the game in entirety, like everyone else.
I think that framing such an option as an accessibility mode would also help players understand that this is not the intended experience (unless you have an accessibility use case), and avoid the pitfall that players start on easy, simply out of habit and then miss out on some of the appreciable game design elements that come with the harder difficulty.
Bingo. And all this being said, I think defensiveness to the existence of this sort of assist mode is a true malignancy in gaming communities. It's openly-stated hostility toward the entertainment of others. Hand-wringing and No True Scotsmaning about who deserves an easy mode is a deflection from the reality that this kind of option legitimately takes nothing away from the experience of those playing on a standard setting. If their experience is so hollow that others being able to enjoy the game in any way spoils it, I can't even pretend to relate to that mindset.