His demonstration is not to show extra resolution doesn't exist or can't be used for special effects. It's basically a super well proven demonstration that you can shot ANY current professional cinema camera for 4k mastering and get more than adequate results. There are a few places that say ARRI cameras aren't good enough. this dispels that.

I keep hearing this myth that you can shoot 4k and zoom and crop with out sacrifice.

In order for that to work you need to have lenses wide enough top be sufficiently far away from the subject and also have enough space for your blocking. Additionally you need to shoot for deep depth of focus so that all areas of your shot are in focus allowing the reframe. You aren't describing a camera setting you are describing a technique.

The same hold true for post stabilization. Post stabilization on anything but a top notch computer is a time consuming task. Additionally you need to be farther away from the subject, with shorter lenses and shoot shorter shutters to reduce motion blur from camera movements.

Thank Steve this is his vision.
The Alexa still performs adequately . This work can help calm filmmakers who can 'only' afford to record on an Alexa

How would the people you are insulting have known better? There is a lack of good technical resources in the film making community. If the 'vast idiocy' don't know technically details it is because there are not unbiased sources that they can learn from.

In addition to production work I teach. It has never been helpful to call people who are misinformed 'idiots'.

My take changed because of this test.
If you are using a professional cinema camera and shooting your coverage correctly there is no advantage.

Less surprising is little disadvantage to up sampling. Considering most VFX are done in 2k and up-sampled on delivery for 4k that was just conforming years of observation.

I was fortunate enough to be among the many people who helped with this test. I may be able to answer some questions that aren't already on Steve's twitter.

There is a lot to make that actually practical. Are you shooting with a faster shutter to account for motion blur? You also need to make sure acquisition hold on to padding for that purpose.

When done properly shooting for post stabilization will be significant amounts of effort. that effort may be better spent on physical camera stabilization.

I mean it's a valid thing to do in post, but it's a whole lot more than just switching the camera to 4k and eliminating the need for a gimbal.