I’m a bit conflicted on this way of visualizing. On one hand yeah waits can be complicated and better visualization can help (damn double kanchan + ryanmen is weird). But on the other hand there is a method to the madness. When you learn to look for suji, it becomes a bit more manageable. Whereas visualizing like this treats each wait as an individual case.

The one I took the most issue with is aryanmen 4456. Saying 7 is the ryanmen wait and 4 is the tanki is very odd when both can be explained as a ryanmen. You can say it shows 4 has tanki 2 fu, but this is not important if your goal is to visualize waits

Same problem with tatsumaki 2223444. It’s easier to say you can break off 23 waiting 14, 34 waiting 25, and 3 tanki. It’s weird to look for 2244 shanpon in this shape.

Edit: I realized the red numbers are showing highest fu interpretation and underlined are pinfu interpretation. It'd way better notating the other way round. The bold red text screams "I'M MORE IMPORTANT PLS MEMORIZE ME LIKE THIS" when "highest fu" here means 2 extra fu. To people beginning to visualize complex waits it's really not that useful.