What a trite, immature, troll like response this is.
Not having good difficulty settings is not a genre. It's a lacking.
This tired response of pretending any criticism of anything means a person "must clearly not be the target audience" is extremely thoughtless gatekeeping.
It's such a bad argument on its face too, as if someone disliking a flaw in something means they clearly must haste the thing in its entirety. insufferable people.