Personally I don't care whether the 30 minute penalty is imposed, but I do think the amount of excuses people have are ridiculous.

What if I have to go to the bathroom? What if there is an emergency? What if there is a car accident outside? What if I need a drink? What if I get a phone call? What if my roommate wants to talk to me? What if someone knocks on my door?

Some of these you can plan for accordingly, some you can't, but those you can't plan for shouldn't be regular occurences. If you're getting pulled away that often, why queue at all? You'll be afk'ing in the dungeon repeatedly anyway.

You get 3 withdrawals before being penalized. Are all of these things happening repeatedly every single day to the point that you are always getting locked out of Duty Finder?? I doubt it.

Yes, there are probably some cases where someone received the 30 min penalty due to unfotunate circumstances outside of their control. However, I think in most cases people just need to take responsibility for their own actions and stop playing victim.