i think thats the point. the pills help you not absorb the fat, so you can more easily reach the goal you are after, and then the program shows you how to eat healthy, and also provide some negative reinforcement (the TE's) so once you do reach your goals, you can stop taking the pills, and stay a healthy weight for life.
personally, i think thats the perfect diet program. something to help you along the way, and teach you how to keep it up on your own after that. i dont think any diet pills are intended to be used for the rest of your life, and if they are, those would be the ones i would stay away from.
your post sounds like you are disappointed in the pills for not being something that you are supposed to take forever, is that accurate?