I've already left a comment on the video about a few reasons why I think inspection is healthy for speedcubing and why no inspection as an event wouldn't be too beneficial, so I'll quickly recap why I don't want no inspection as a new event, and then i'll make a more out-there argument.
No inspection as an event would largely consist of the skills and knowledge already used for 3x3 and other 3x3 events. People that dominate 3x3 will still dominate NI. It would also suck to see the long awaited new event be just another way to solve 3x3, when we already have 3x3, OH, BLD, FMC. Those last two points, the same solvers dominating and the event being the same puzzle, would be insulting to the communities for other non WCA events. People that solve other cubes such as the redi cube, or FTO. I'm sure they would absolutely love to be able to compete in their events officially, so to have the new event be "3x3 except y" again would be a great disappointment. Also, another events, diluting event pools, comp time restraints, etc.
Now, for a more unique counterpoint.
Repetition and pre-meditation. You mention two examples in your video, sprinting (100m) and typing. I'd also like to throw in speedrunning as that is something that often gets compared to cubing. Anyway, to talk about all of these, I'll start with typing. As Mike Hughey said,
In most typing tests I've seen, you actually get to see the text before you start. If it's that type of typing test, I would argue typing is just like speedcubing - it also has a non-counting inspection time - you are planning your typing in your head before you start
So in that essence, typing is similar to cubing. Both can be pre-meditated. But how about sprinting? You can't exactly get a running start, can you? Well this is my other point. Repetition. Any time you take a typing test, bar the gimmicky ones that use a set few quotes from literature, you'll be confronted with a string of words you have never typed in that particular order before. It is up to you to navigate this brand new sequence, with a little pre-meditation. Any time you solve a cube, you are faced with a scramble that nobody has ever seen before, and it is up to you to create a solution to this scramble, with a little pre-meditation. Sprinting is different, then? Yes, different, albeit similar. The difference is that sprinting is the same on every attempt. You run on a track of particular material, for a certain difference. The only random element could be the weather. Now, I am NOT saying that practicing sprinting is deceiving in the same way that some people might see inspection time as deceiving. I'm saying that for typing and cubing, you can practice the earlier part of the attempt in your head for a few seconds. For sprinting, you can practice/continuously repeat the sprint beforehand. In this way, I see repetition and pre-meditation as being related.
"but Swagrid, repeating/practicing a sprint is practice in the way that untimed solves and drilling algs is practicing, not like inspection time."
Arguably. Algs I will give to you, but this doesn't apply to the intuitive steps.
The same argument can be made in part with speedrunning, it uses the same route most runs, and you can usually know what to expect and what to do, with some randomness involved.
My overall point here is that most things cubing is compared to falls into one of two categories
1) you already know exactly what to do, and you have practiced the exact manoeuvres, and now must execute them.
2) you will not know exactly what to do, will be able to pre-meditate some of the attempt, and then must execute that and work through whatever is left.
That is my ambitious take of the day and I await being clowned on
EDIT: yo I kinda forgot to conclude this lmao. yeah so clearly cubing falls into category 2 and I see no reason in making cubing the outlier, alone in a 3rd category in which you do not know what to do and do not get to pre meditate