The physical expresion of blending is always going to be taking some sort of measure and distance. the end result of that blending is not really relevant to the blending in itself.
you can't blend on you own, you alway blend with something.
and it is as much mental as it physical.
all of those do factor in to a degree... and no one is arguing that blending is anything but a physical and mental process... just that it's not the obvious movement being shown in the clips you posted.
The blending you're talking about? Once you have I.S(killz & strength). it happens at the point of contact. Timing augments it sure, but you can do it without timing as well