Sure, but even putting RPGs aside, there are a lot of games that can be played with just a regular french deck of playing cards. Should we limit all tabletop design to them?
From the practical user experience perspective, a well-desifned character sheet can make tracking stuff easier, and, similarly, bespoke doodads can help with that too.
Like, imagine if each player had a big tablet in front of them, and put big visible red cards on top of "wound slots". That'd eliminate my complaints about wound system — that it's hard to keep track of them, because they are hidden on a character sheet that I just can't see from GM seat — by making it very transparent what wounds who sustained.