When you are trying to lose weight it is just as important to eat enough food as it is to not eat too much. You want to force your body to burn fat for some of the energy it needs, but if the incoming food is cut too drastically (or energy expendature increases drastically), then your body can start to panic and lower your metabolism in order to PRESERVE energy (i.e., fat). It will even burn muscle in place of fat because it considers fat more important to your survival than muscle. So, that's why you got "chewed out" for not reaching your points total.
I have PCOS and I have NOT been instructed to follow a low-carb diet. In fact, the latest research shows that it's not necessarily more effective. I have lost 155 pounds in 3 years or so following Jenny Craig, which is a fairly high-carb plan.
So, I would say that if WW is a good fit for you, then rejoin and eat as instructed. They do have a new food plan option called the Core plan that is lower-carb that you could do if you insist on reducing carbohydrate intake.