According to the specs, the drone is 143x143x55 mm. That works out to 1124695 mm³.
A typical soda can is 120mm L. x 65mm diameter. That would be 398160 mm³.
If my math is correct, that says that the drone is roughly 2.825 times larger than the can!
Even accounting for the empty space within the drones LxWxH volume - in what alternate universe could that be smaller? Where I come from, if "A" occupies more space than "B", "A" would generally be larger than "B".
If you're only counting the fuselage, I don't believe it can fly very well without those props, so that's cheating a bit.
Please correct me if I'm wrong.

I use extension tubes. They're not expensive and they usually maintain aperture and focus control to your lens if you get the right ones. Using a short zoom lens will give you better composition range. I didn't do the research, but they can't be much more costly than the reverse adapter and usually come in a set of three different lengths, which will give you seven different magnifications by using different stacking combinations of the three. (A, B, C, AB, AC, BC, ABC).

Your "Hex Head" screw is actually called a Socket Head Cap Screw. An actual Hex Head screw has a hex on the outside of the head (for an open end or socket wrench), not the inside. And the L-shaped wrench should not be called an Allen wrench (although most people do). "Allen" is a manufacturer and a trade name. If you want to be politically correct, call it by its generic name, "Hex Key". The Socket head Cap Screws are typically the strongest you can buy and are often made of alloy or stainless steel.

I was curious about how much gear this system would handle, so I asked.
The maximum quantity this can work with is 500 items. It seems to me that the more you have to keep track of, the more you need a system like this.
One can accumulate quite a bit of gear over the years and, as most of you probably know, it can sometimes get out of hand to manage.
Just when you find that you really need something to help manage your stuff is when you find out that you are now limited.
What about the companies that have so much more? They are going to want their entire inventory on a system, not just part of it.
Seems counterproductive to me, unless they plan to open it up to being unlimited.

I would like to see it, but it says this video is private. And yes, I did log in.

I have found that I use my gimbal (Ronin M) more on my dollies and jibs than handheld, primarily to take advantage of the wireless remote for pan and tilt that makes it so versatile. Having the dual duty saves money and gear storage limitations. Having a dedicated pan/tilt head can be very expensive and requires more training, maintenance, and troubleshooting, That one feature was the primary selling point for me when going for a gimbal.