You are rapidly burning through the presumption of good faith. This is not a hairsplitting distinction, but a completely different approach to computer security, and claiming that the difference is insignificant is strongly suggestive of a grift. CHERI's ocaps are largely capabilities to assembly-language memory regions, and Jonathan Rees's seminal ocap work was at the Scheme language level, which also doesn't have OO. Pony's ocaps are also not generally to OO objects.