it sounds like to me theyre talking about throwing more of an s-turn , throwing from your chest at that low angle your going to have a hard time throwing anny that wont come back and you wont be able to get alot of spin without slamming into the ground .
now if you raise your arm up higher youll be able to throw a shot that will truely look like a hyzer in reverse or anti-hyzer(anhyzer for short) and youll be able to put all the spin you can muster on it makeing your righthand shot mimic what a left hander or sidearmer can do.
Well said. Additionally, as was said earlier the FH and BH anhyzer shots are good for different types of situations. An anhyzer shot is great for shots where you need it to start turning immediately while a FH shot is best for a gradual right turn or a right fade at then end of the fairway.