You’d be surprised how many people use grease pencil, everyone loves it. There’s a full short movie made with it. I believe it was a passion project from a Mexican director? I think. But the question is to the contrary, why not have it, even if just a few people ended up using it. It’s been maturing over the years and it’s a great addition to the repertoire of tools Blender has. It’s the cool thing with open source, lots of people do 2D art and Blender was lacking it, so they developed it.
