If you’re exhausted at the point when your alarm rings, then forcing yourself to wake up at the alarm clock can be pretty terrible for your health since you obviously need more sleep. Unfortunately alarm clocks are a necessity for a large amount of the population, but it is possible to pull back your sleep phase with things like morning sunlight and exercise so that you get closer to waking up at the time you need to naturally. I’m working on pulling back my sleep phase now.
I agree, the responding to the alarm thing should not be at the expense of sleep. I get 8.5 hours so I think I’m good. If I don’t do the alarm, I scroll my phone endlessly in bed though, so this has been helpful for me.