Yes, the GB meridian is an interesting case, because it doesn't show up so readily under the fingers like other channels do - while you can easily find a straight line running right down the sides of the body and the legs the traditional zigzag can be hard to trace intuitively.

I've been taught, and have come to understand that the zigging and zagging of the Gall Bladder Channel is a graphic representation of it's nature - facilitating the turning and twisting flexibility of the body. I can see and feel how all the points associated with this channel definitely share a similar energy, and from a point-worker's (acupuncturist, acupressurist, qi needle, etc.) perspective, it makes perfect sense. But for bodywork, we sort of need channels that we can feel and follow with some sense of continuity. That's why I believe Masunaga Sensei chose to simply work straight down the side of the body for the GB channel, and look at some of the other points as existing on different meridian flows.

yes, overlooking the counter-intuitive has been a practice for me in studying TCM. Coming from Chakras and Nadis that seemed to make a lot of sense, the 12 and 8 major channels of Chinese Med were slightly disconcerting. What I've realized though, is that eventually the counter-intuitive bits come to make sense when one understands all the aspects. For many of us, there is so much foundational information missing from the chinese medicine system that it's hard to understand the poetry. But when we start to gain access into the greater philosophy and science of the medicine, the poetry becomes clearer and reveals itself as a unique way of describing the subtle energetic realm. When I find new info in TCM that doesn't fit my filters, i have learned to suspend my disbelief until i come into a deeper relationship - this nearly always results in insight arising!