Or because they're in a style where a teacher insists that direct resistance is unnecessary tension.
Originally Posted by HuntedRasta
2) Most people are practicing their sensitivity and evasion.
I don't think theoretical in-the-air joint breaks are as common as you may think. Controlling joint locks into takedowns is pretty common.
3) Most of the moves which send people flying would otherwise have caused a break. In other systems this is prevented by never actually doing the move, just explaining or making a gesture in the air. In systema you learn to go with the movement to avoid destruction.
Well, there's lots of systema demos where the "attacker" falls into a heap after a hand wave or light rub.
I think it is interesting that, with other styles, no one is suprised to see a teacher show all sorts of moves and would-be scenarios where the students completely let themselves be "demonstrated" on, and finally we have a style where there is NO pre-formatting and all the demonstrations are done with creative license from the attacker and defender, and NOW people get in an uproar about it.
I've done training in systema and have read BL's book.
Please, go to some classes with various instructors and read some Bruce Lee.
You will be very surprised at yourself.
To me, a lot of systema felt like recess for adults; that's what I liked about it.
Also, understand you WILL feel strange. You are constantly put in direct confrontation with your fears and weaknesses (and taught to deal with them, mainly by moving & breathing), and if you cheat you are only ever cheating yourself. This goes for many martial arts.
I recommend that one not start systema until after studying a more conventional art. Hell, that might be good advice about MA books too.
I especially recommend martial artists study several styles, if you are already a practitioner of something else it can still benefit you to study Systema.
Oh and READ BOOKS.