Maybe in your experience this is so. I wrestled in public school, I never heard the term "structure", rather I learned moves and techniques, stand like this and when he does this you do that, no explaination really as to why we do these things and how the body functions better by doing it that way. I played and taught tennis, got pretty good at it and went to a world class training facility in Florida, I never heard the word "structure" mentioned, all we did was drill the basics, learned some strategy and played against one another.
I agree that WC was generally marketed as easy to learn. Some systems of WC are, as they are tailored to the general public in Mcdojo type schools, I worked and taught at a place for this for years. The majority of the students there (99%) were pure hobbist, never practicing at home nor thinking about it out of class, the remaining 1% excelled 500% better than the others. Over time I learned that WC is far from easy to learn, it is complex and hard to learn, maybe one of the hardest, but once you learn it is easy to exibit and bring forth within your own movement. Whether or not it is effective vs someone hell bent on hurting you is not something anyone here can answer, unless you have a crystal ball
The problem comes when we intellecutalize it and try to explain to one another what we are experiencing and learning on the physcial level. Human beings have a natural tendency to complicate whatever subject they come in contact with, finance, nature, politics, religion, whatever.
.So, concerning WC, the basic idea in is to learn a skill set, that begins with a bodily structure that connects the whole body together as a unit, but a unit that is not fixed(static) nor rigid (stiff). Without the structure your actions have no foundation or ability to transfer power or energy into your movements, whether they are offensive or defensive.
I agree there are some esoteric ideas and theory's about it all. Since WC is pretty specific in it's application (we are basically infighters), we need to develop certain attributes to make it work for us. If I apply a boxers structure and mechanics but am in or around the clinch range it won't work, just like WC structure/mechanics don't work outside the clinch range...yes we can still use the prinicples of the system, but the physical part does not apply there (why use facing concepts on the outside when I need to utilize reach more so..).
Now for us in the beginning we don't want to clinch, grab, hold on to our opponent, rather we need to learn how to strike, and control thru the striking to KO our opponent from that close range. Sounds easy, but the reality is it isn't..Yes one can learn MT to function here, but we aren't talking about MT.
James