wabbit
Evil has Ears
I think the point trying to be made is a student or newbie will get inconsistent audio. This is fine for small independent or student films but if you are shooting for a professional production, sound is not something you can just pick up and be good at quickly. It's not rocket science either but the good sound mixers work for years and are still learning how to get better audio. It's just a choice you have to make when you are starting out your production.
Cheers
Cheers