As with most techniques what works for some may not works for others. Side teeps work, side kicks work, spinning elbows work, flying scissor kick takedowns work.
For myself, being in a side stance was not a ideal position to be in, therefore I didnt like or practice the move much. I did practice sidekick enough to throw as last resort so I wouldn't be completly screwed if i got there but was not a position I would intentionally put myself in as it was a vulnerable position for me.
Never said I needed to be in a bladed stance to throw the kick, just that it is easier to do from a bladed stance, as from a square stance it requires more rotation.
Miss a round kick and you can back kick. Miss a and round kick and you can etc etc etc.
Miss a sidekick and flying scissor kick takedown cung lee style!!!
The infinite amount of possibilities in fighting.
Im familiar with the kick. Can I throw it? Yes. Can I use it? Yes. Have I used it in sparring? Yes. Have I used it in a fight? No. It is a technique im not a fan of and prefer not to use. I dont disagree the points made here. But for myself I prefer not to use it because it CAN put you in sidestance which is a poor and vulnerable position to be in....for me anyways.
The only time I would use the kick is playing around or much better than someone as frode mentioned.
Its been fun!
Here's cung le with his scissor kick takedown. Used from sidekick but could just as easily be thrown from a side teep.