Well, I agree that the best way to do stealth is with both hearing rings and sight cones. Regardless, making them invisible to the player would make it so stealth becomes much more Skill Check based and a lot less player just needs to get gud based.
It's an RPG. It's meant to be based on your character's abilities, not your own, so you can become your character an escape to their world. I suck at rogue games with stealth. If I'm playing a rogue in an RPG, I want to be good at stealth because naturally I suck at it, not in RL and in video games.
But if I'm a rogue with Stealth Expertise, having +7 or +8, I should be able to sneak up on enemies much better than my +1 disadvantage with heavy armor cleric.
