WHY were Kano's guys better? Because of their training. Because Kano took traditional jiujitsu and adopted the sport-model to his training -- making it performance-based.
And that's why even today, judo guys dominate traditional jiujitsu guys when their best go head to head.
Actually, Kano training was base don his training in Kito-ryu and Tenjin shinyo ryu, to TJA and the training he use din Judo was the same one, he "invented" nothing in regards to that training.
And the traditional jiujitsu schools continue to train like they did -- and how do these guys perform in grappling, throwing, fighting contests?
The problem was on what was prioritized and most TJJJ focused on the "too deadly" and on Katas.
So, do you think that one incident is solid proof (versus, for instance, the overwhelming domination of judo over other traditional jiujitsu) of how good a particular training method is?
You may want to look into how modern kendo began -- and how the commoners who took up sword practice and adopted the modern sport methodology overwhelmingly defeated the traditionally-trained samurai when joint tournaments were held.
I think you need to read up on the context of those matches.
The sport guys "out pointed" the kenjutsuka's, they played the game better, a game the kenjutsu guys didn't know.
The tapped and poaked with sticks and got in quick points over the "kill shots" of the kenjutsu players.
This is a bad example for you T, it's like comparing point sparring with kick boxing:
Put the KB in a point environment and they will be eaten alive by points.
Psalms 144:1
Praise be my Lord my Rock,
He trains my hands for war, my fingers for battle !