It's bad because of the opposite reason you said. It makes 0 stealth character unviable for most stealth-only quests, like that JKK mail bomber ones, or gray army base. Both can be brute-forced, but still viable enough for 0 stealth characters with high tailoring.
Ofc it's all very few in number, but still kinda sucks. And due to how the game mechanic works, yellow or green eye only affects its "timer", doesn't affect their actual detection. Probably gives you 1-3 seconds delay at best.
Basically just adding more tedium in the game, unless Styg reworked the entire mechanic.