This is how I feel about the Dark type. I actually find it pretty annoying that a Pokémon will automatically be "evil" no matter what in terms of type. Especially when Dark types have natures like jolly, modest, gentle, and calm. Kind of contradictory.
It's not even that. At this point, 5 generations after the Dark type has been revealed, in the Anime Ash has had 3 Dark type Pokemon, and even if that type wasn't focused on a lot, it showed that type can be viewed as something other then "evil".
For gen 7, Dark type is the single most needed type to get a gym. I just the game developers/designers/story writers see that to.