Hmm. I'm going to be a little less forgiving.
The initial escape is not a very high return one, honestly, as you're moving in line with the strength of the arm, and taking it in a direction where there is plenty of space for the attacker to accommadate the escape.
Sorry sir, I cannot agree. I had not practiced that escape of the left hand, but it will work. You are not attacking against the strength, but the weakness. Grasp someone tightly and let them apply that escape by moving the hand down, out, and back over. Few people develop strength there.
I can see the principle you're trying to use (the gap between the thumb and forefinger), but you've missed the rest of the picture, and forgotten about controlling/stopping the movement of the arm first.
I agree that I at least, would be less inclined to try to use the pressure point, if that is what the OP is suggesting, but more what shesulsa talked about. It is the way I was taught. However, I don't understand the rest of what you are saying. By moving the opponent's right arm to his left, you are closer to grabbing and locking than the opponent is to cocking and striking.
A small step along with your movement thwarts everything you're attempting to do. Again, actual study of te hodoki methods would help greatly if you're going to be teaching them.
If you mean a step at the end of the lock I agree. He cautions against allowing that to happen. As I was taught, we would place his arm in our armpit and bar him down, allowing him no movement. However, I don't think at that point it makes a lot of difference. By then he should only have one useful arm, as you should have sprained or broken his wrist with the lock.
The wrist/arm lock is okay, but nowhere near as strong as it could be. In essence, you're not taking it to the right position, you're not letting your arm move across to the inside of the arm, instead trying to keep it on top, which leads to the possibility of the escape you demonstrate. By taking your elbow a little further across, so that it ends up on the inside of the attackers arm, then bringing your elbow back in towards yourself (towards their arm), it's a far more powerful hold, and requires far less strength than the action you're using here.
I think we are talking about the same thing, just describing it differently?
When you discuss such techniques as being for women, as they are likely to be the ones attacked in such a fashion, the problem is that the methods you're showing aren't really that well suited. I would also say that your reasoning of "learn these techniques because you should learn the basic, simple techniques first" is rather flawed. The basic idea I agree with, but what you're showing here isn't really fitting that ideal. There are far more high-return, simple, basic methods for everything you've shown so far.
There is truth in the above. You have to start with simpler things, and learn them well, so the more 'complicated' things don't seem so much that way. You also build up muscle strength for those moves with practice.