That section of the CSI rules only addresses the specific tactic of intentionally contacting your opponent's ball first. The harder problem is to define in general what unsportsmanlike conduct is. That is done on page 38 of the CSI rules, but I think the WPA rules do a better job with that definition.The wording is ok in the CSI rules. In fact, it coincides with my earlier post of what should be considered unsportsmanlike conduct.
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At snooker, it is considered to be unsportsmanlike to benefit from a foul, although I don't think the rules actually say that. That of course would outlaw the move of the OP.