I really don't like how that article handles rule 16.2, the rule is very clear. A starboard tack boat certainly has the ability to alter course in order to influence a port tack boat, but it's actions are limited.

16.2: In addition, when after the starting signal a port-tack boat is keeping clear by sailing to pass astern of a starboard-tack boat, the star- board tack boat shall not change course if as a result the port-tack boat would immediately need to change course to continue keeping clear.

Dialing down, or hunting, a port tack boat is an extremely common move in team racing (and match racing where 16.2 is deleted), and is perfectly legal as long as the port tack boat doesn't have to immediately change course to keep clear. So, if a starboard tack boat is altering down at a port tack boat in order to influence a cross, at a certain point they must hold their course so the port tack boat can keep clear with needing to immediately alter. While this sounds subtle, when umpiring it is pretty clear when watching the helms of each boat.

To be clear however, I would not recommend dialing down a boat while racing catamarans- the acceleration as both boats bear away is way too high, and a very dangerous situation could result, irreregardless of the fact that determining when immediately is with cats would be very difficult.

On another not, in my opinion using the rules to your advantage is not cheating- it is absolutely part of the game and knowing the rules is part of being prepared to race.