I think the point may be missed, okay practice punching, so a beginner puches with an unclenched fist to you teach them to make a good fist, okay now you teach them how to kick so they do this with thier toes, so now you show them how to kick without breaking thier toes, now you ask them to block to the rear and them low block because they did not see you were showing defence of a high section punch, so now you show them to look as they turn. The tuls are a basic learning curve that advance as they go. If you show the purposes that each move can be used for then where is the confusion. Of course in the street many aspects are not used in formal stance but it is natural once taught and have thourough understanding of to use the techniques. If you only see a Tul as prety moves then thats all they will be to any student, but if they practise dilligently and also practice them as in attacked situation then this is the practicle aspect. May be many are making the same point in different eyes.