You are using martial arts logic to determine ability. Which seems to be all preconceptions and other unnecessary junk added to this question.
I don't understand what you mean by martial arts logic
It doesn't matter what camp of Aikido we are discussing so long as they have a definable objective.
It does matter because if your camp isn't interested in learning how to use Aikido then you aren't going to get any fighting ability from that mindset. If your camp is interested then you are going to training with people who are interested in using things that do work. This means that the teacher will most likely separate elements of Aikido into thing that can be used and things that shouldn't be used. We have already seen this play out so we don't have to guess about this.
People interested in application tend to move and look like this.
If I want to learn how to make war, then I can't train in a camp that only cares about making peace.
Then we see if he meets that objective better or worse than anyone else. In a manner that is able to be demonstrated in an experiment.
Actually he reached his objective multiple times. To him being the best student = being the best martial artist. Each time he went for it, he became "the best student." So by what he defined as "the best martial artist" he reached his objective. This is why I keep saying how we define or identify our goals matters. "the best martial artist" to you may mean beating people in competition. This would send you on a different path based on how you define it.
If someone came to me and said the want to be the best martial artist in the world, I would ask "best in doing what? Forms? Weapons, Fighting? Tricks kicks? Breaking? If the teacher can't be honest in these areas and admit when they aren't the best to teach in that area then find a new teacher or train that aspect at a different school while still training at the Aikido school.
When I'm trying to understand Aikido. I'm not trying to look at the peaceful camp because I'm so against that mindset. For me I can and have found peace in fighting. But my definition of peace is not the same as their definition. The Aikido I try to focus on is from the camp that tries to use it. So when I see a video of Aikido I try to first identity which camp made the video.
My understanding of Kohei's Ki Society approach is that it isn't focused at all on fighting application. It is - as the group name implies - about developing ki.
This is what I keep bringing up. It makes no sense to compare that to fighting if the purpose of the techniques used isn't about fighting. This is why it's important to identify what is used for fighting and what isn't. It's make no sense to pick something that was never created as a fighting application and to hold that to the application of fighting.
It drives me nuts. That's why at the beginning of this tread I was so intent on trying to understand if that "Aikido chop" was for fighting application or not. If the chop isn't a fighting application then there's no need for me to continue to look at it.