What there to respond to? Because something is in the rules it should be ignored?
Once upon a time nut shots were legal also, I guess we should ignore them and everything else that happens now also.
If a fighter does not stop when the ref steps in, it is against the rules.
Nowhere does it say that Jones' kicks are illegal. If they were, and he continually delivered those kicks, then he would deserve some sort of disciplinary action. Since it is not against the rules, it does not compare to the Palhares cut. Different situation entirely.
You're trying to compare a legal technique to Palhares not stopping when the ref intervened. Those are two totally different situations.