Re: techniquies in street fights
Smart peope will not attack with Shomenuchi. Maybe a manifestation of it, but the techniques will come in an attack chain that is fast and overwhelming, not cooperative, or telegraphed.
I see shomenuchi more as a training tool to demonstrate principles.
It is not so much "what they attack with" but "what you respond with". Shomenuchi can teach you the correct ways to develop instincts that are appropriate given a direction and position of the attack. I'd worry not so much about the attack, but your response hopefully proactive and not reactive, but sometimes you don't have a choice.