Akbar, let's go over this again...
The lightsaber fight only lasted about 1 minute or so. Before they both seperated and sids started to throw senate pods at yoda... how was yoda suppose to beat him when he had to dodge every pod thrown at him.
If this was enough to put Yoda out of the fight, someone with more Force power (read: Kun) should be able to easily do that.
And yoda lost his lightsaber because of the force lightning. Big mistake.
Indeed, big mistake. So if Sith lightning caused Yoda to drop his saber, Kun's Sith lightning should be able to as well.
So yoda had very bad luck, and you know it. The entire fight was in sids favor.
There is no luck; there is only the Force.
Was this Yoda's "bad Force" moment? Or perhaps we should entertain the possibility that he was overmatched in that scenario, and by more than you're letting on?