I don't know what to make of that.
For example, if the guy was being pushed down in the first example why then did he choose to roll forward?
He could've just sat down.
On the other hand, why did he choose to be pushed down at all when he could've just stayed standing.
Did you ask him to collapse or did he volunteer?
Actually, I can make him do a front fall where his legs have to go shooting out as well or I can be nice as I did and place his center of gravity where I placed it to give him a front roll escape. It is a question of studying throwing points not arc sector throwing. IMO, throws must occur on specific points in space to be most efficient and to obtain the best success rate.