how do you expect to actually land good hits if you constantly practise in a distance, where even a fully stretched out arm doesn't come near your opponent's face?
if you extend your arm completely and still can't hit your enemy's face, then you know you practise in the wrong distance.
that's one thing that chi sao teaches, when you use your elbow force instead of chasing hands, you automatically have the correct distance to be able to land a good hit.
when properly done, the tip of the pole vibrates with each movement. then you know it's done right. for this, you need proper explosive hip and elbow power, the 2 main things of wing chun boxing.
this is no attempt for take down, it's a joke.
and the 100 finishing moves not only look silly, it's a waste of partner practise time, you really think that helps you improve in any way?