As much as I dislike Kapoor, technically Vantablack isn’t a pigment or regular paint by any means. From my understanding it is actually carbon nano tubes with who knows what else mixed in it and I believe it’s actually very dangerous to be around without proper PPE. So in that sense, it makes sense to me that he “owns” it.
Still don’t like the guy though.
I could, but I don’t personally care that much about Vantablack.
There is a group (person) that makes an actual super deep black paint called Black 4.0 and if memory serves correctly they actually started with a jab at Kapoor by originally making the Pinkest Pink paint and banned Kapoor from buying it. Looks like they have a lot of different paints these days and are definitely worth checking out.