TBF user choice and customizability aren’t very Apple things in any context.
My Apple Watch has a setting for how long the display stays on before sleep. It’s a dropdown with two choices: 15 seconds or 70 seconds. Would you prefer 30 seconds? Why not 60 seconds instead of 70 you say? Fuck you, you don’t know better than Apple designers. Take it or leave it, best we can do is 15 seconds.