Well, it doesn't necessarily mean that he hates Bitcoin

It means that he tries to push his agenda for Bitcoin Cash, but having an agenda already means he is not honest and sincere. You wouldn't really expect true hate from an insincere individual. Anyway, he should be interested in Bitcoin's growth because without this growth Bitcoin Cash won't grow either. Apart from that, he most likely has real bitcoins himself (and probably a lot of them), so it is hardly the case he should in fact hate Bitcoin. He just tries to capitalize off it, nothing more (and nothing personal)