See why systems don't help you?
He is using a 2 rail center point, parallel cue system. He ends up adding right english to lengthen the angle off the long rail, and shorten the angle on the short rail, in hopes to get the 2 rail kick. I mean he knew enough to feel that he needed a tonne of right english from the contact point he chose...because he felt the running english angle he was getting would bring him under the 2 ball. It turned out that even with the right english he still came under it. Why not just adjust the contact point and hit lower on the long rail?
He would have done better to just visualize the two rail kick versus trying to force the contact point he got from the system and compensating with right english to accomplish what running english would do naturally if he hit farther down the long rail. The problem is he was relying on the system instead of just knowing or "feeling" the shot.
Actually if you look at when he parallels the cuestick it actually lines up with a lower contact point that where he hit on the long rail. So if he hit the proper point with running english it would have worked. I have used this system at times, but I recall it would tend to run long in some situations or something about it not being totally consistent in different scenarios...better as a guide. Anyway I now do all my kicks by "feel".