RBO is certainly a category unique to Super Metroid and basically amounts to a specific type of challenge run. The comparison to the coinless-capless-cannonless run thus has a certain amount of merit. Of course, in Super Metroid part of the point is to collect powerups which change how you navigate the game world; such obviously can't happen in a CCC run as much of the point is to avoid those powerups.
There are two major differences in this run as compared to our existing Super Metroid runs: Lower Norfair and Maridia. The rest of the run is basically similar to existing runs (to the point that unfamiliar viewers wouldn't notice differences, though they are there). Navigating Lower Norfair without the Varia suit (protection from heat damage) requires a great deal of health management as well as collection of more health powerups than usual (which in turn means that several rooms prior to Lower Norfair that have health powerups are shown when they usually aren't). The lack of protection against heat damage also nicely creates tension, especially when fighting Ridley (the boss of the region).
Meanwhile, Maridia (the underwater section) is underwater which severely constrains Samus's movement capabilities. Of course normally the Gravity suit is acquired which removes these restrictions, so navigating without it makes many rooms much more difficult. Those familiar with the game will recognize that normally even a skilled player would need to take
much longer to navigate the same rooms. Draygon, the boss, is also quite difficult to fight without the Gravity suit, and the strategy used is nothing you would see in any other circumstances. Usually you can just speedboost him to death in a TAS.
That's my take on it.
If you feel that we need to not have a fifth Super Metroid video on the site, I'd suggest replacing one of the less-glitched any% runs (
here or
here). They're the least well-distinguished from each other of the currently published runs.
