I'm confused how the connection was made between "here are our guidelines for suspicious activity" and "self custody is outlawed"
One could argue that's how normal Bitcoin wallets work. The addresses are deterministic based on your passphrase (or derived private key). The addresses don't need to get reused because there's no real value in doing so, and no real cost of just using a new address each time.
Though yes--even if that's the exact meaning and design, presumably one could still use the simpler wallets that DO just reuse the same address over and over. And obviously that'd reduce privacy quite a bit.