...Why is this required, when there is no equivalent course-fundamentals of open surgery?...
Just a few thoughts. ABS is really pushing towards a greater implementation of "simulation" in training. You will spend 5 years doing a good deal of open cases to include whipples, colons, tramas, etc.... Hopefully with your reading and "mentored" participation you will get what you need from "open" perspective.... Also, ABS is looking for simulation centers.... you can pretty much obtaine pig guts to hearts and have some practice on bowel to vasc anastamosis.
So, in lap cases, in theory, only one person can safely hold the lap instrument at a time. Furthermore, you loose the "haptics". Your attending/assistant maybe on the oposite side of the table. You may need to operate with backwards & upside down image and then quickly convert to normal camera view.... Thus, the belief in simulation to help get you over the learning curve.
...I am doing the modules instead of relaxing. It just seems like there hasn't been anything in the modules that I haven't already picked up from being in residency and assisting with/doing cases (I'm not done though, maybe it gets better?).
Unfortunately, that is not the case for everyone. Why do you think so many are jumping to MIS fellowships? Yes, some do it for a diploma to help limit their scope of practice. Some do it for a diploma to help gain "credentials" at a hospital. Truth is, a MIS fellowship, other then getting a diploma is most useful to remediate those whose residency program was not so progressive in the arena of MIS. During my GSurgery, I was DOING lap gastric bypasses halfway through my PGY2 year. I was DOING lap adrenals, hiatal hernias, Nissens, ventral hernias (with seperation of components), renal harvests, colon resections... all routinely by my PGY3/4 yrs. An MIS fellowship would have just been a waste of a year for me.... and extra trauma call and warm body for the "program". So, back to my original statement, it sounds like you are being properly trained in the MIS basic science components. Hopefully, you are also being trained in the technical....
JAD