You're right. The intoxication of graphics and visual design in games can't be underestimated. It's more than a paint job or window dressing. It slots into the whole itch-scratching appeal and addiction.

I agree debugging tools could make more use of visualisation. I remember the excellent HTML 3d view in Firefox, removed from version 47. For some reason we can't have nice things: https://www.youtube.com/watch?v=zqHV625EU3E

Not sure if there's a way to get it back. I heard it's available in Edge, but I don't use that browser.