Considering that some of Capcom's official skins are already borderline porn... yeah, it's about the money. But just like Blizzard when it tried to crack down on Overwatch rule 34, they're about to get blasted with the Streissand Effect.
Capcom's list of community standards is just them flexing their legal muscle. Any corporation doesn't like the idea of losing control of their intellectual property because they failed to defend their copywrite in a court of law. Don't take it too seriously until the lawyers start sending letters.
About 8 years ago or whenever they were jerking fans around about a new Darkstalkers game ect..any who; I remember around this time they had some weird censorship. They were claiming it was because of stores, so their adds were hiding revealing clothes and changing win postures, others not so much.
Conversely, a number of things are appropriate now which decidedly were not back in the 90s. Mass Effect in the 90s would have featured somewhat different relationship options, for instance. And Cyberpunk in the 90s would not have featured customizable genitalia.
A corporation's motivation is ALWAYS monetary. The do not have compassion and they do not have morality, and even if they do nice things once in a while - it's a PR campaign to raise popularity and get more money. Corporation is never your friend.