Gssh... I agree with you in cases where an experienced leader is making a conscious choice about what to do. However, I've seen too many (especially beginner/advanced beginner) leaders who simply have NO IDEA that they are a problem, and even if they do, they have no idea WHY or what they are supposed to do about it.
It's also quite a big transition to go from the class mindset of thinking primarily about what you are doing, to the milonga mindset of thinking primarily about what is happening around you. Unless the classes are crowded, it simply doesn't come up in most classes. Teachers can force it to be a factor, but too many don't. Everything about the way most classes are structured encourages leaders to focus on what they are trying to do above all else.
So leaders have all of their focus going to what they are doing, where their partner's feet are, and remembering all the complicated stuff the teacher told them (but probably shouldn't have). I've seen more classes where the teacher doesn't talk at all about possible variations on the pattern, than where they teach good overall technique and break things down into the smaller components.
YMMV, but there are a LOT of classes where doing the pattern is so paramount, that it simply doesn't occur to newbie leaders that it won't ever be usable that way. Who would intuitively realize that what they are taught in the expensive class from the supposedly qualified instructor is almost a complete waste of time to learn? "I learned it in tango class.. it MUST be something I could do when I go out to dance tango otherwise why would they have taught it?" That thinking is actually quite logical. Expecting beginners to realize that they are supposed to take away some knowledge from the proper execution of each component rather than from completing the pattern is expecting a lot. They need to be TOLD that, and then told WHAT the relevance (or potential usage) of each component is.
For a leader taught without that to suddenly start dancing with "expanded awareness" instead of "focused awareness" is asking a lot. The ones who do suddenly experience expanded awareness are often so overwhelmed by all that's happening around them, that they are scared to get out on the dance floor at all.
IME, most classes do not prepare leaders for social dancing.
It's also quite a big transition to go from the class mindset of thinking primarily about what you are doing, to the milonga mindset of thinking primarily about what is happening around you. Unless the classes are crowded, it simply doesn't come up in most classes. Teachers can force it to be a factor, but too many don't. Everything about the way most classes are structured encourages leaders to focus on what they are trying to do above all else.
So leaders have all of their focus going to what they are doing, where their partner's feet are, and remembering all the complicated stuff the teacher told them (but probably shouldn't have). I've seen more classes where the teacher doesn't talk at all about possible variations on the pattern, than where they teach good overall technique and break things down into the smaller components.
YMMV, but there are a LOT of classes where doing the pattern is so paramount, that it simply doesn't occur to newbie leaders that it won't ever be usable that way. Who would intuitively realize that what they are taught in the expensive class from the supposedly qualified instructor is almost a complete waste of time to learn? "I learned it in tango class.. it MUST be something I could do when I go out to dance tango otherwise why would they have taught it?" That thinking is actually quite logical. Expecting beginners to realize that they are supposed to take away some knowledge from the proper execution of each component rather than from completing the pattern is expecting a lot. They need to be TOLD that, and then told WHAT the relevance (or potential usage) of each component is.
For a leader taught without that to suddenly start dancing with "expanded awareness" instead of "focused awareness" is asking a lot. The ones who do suddenly experience expanded awareness are often so overwhelmed by all that's happening around them, that they are scared to get out on the dance floor at all.
IME, most classes do not prepare leaders for social dancing.