Tell me youve never skied PNW without actually telling me.
Heres a little lesson on layering- its not the cold that makes you cold, its the wet. If you sweat a lot and that has no way to escape, then you get cold. If you ski deep, wet, snow, and you get soaking wet, you will be freezing cold. Thats why i can stay warm any pow day with a just a base layer and a gore tex shell.
would i be warm if i start the day warm in a base later and a cheap puffy, and a thick hoodie? Yeah. Would i be freezing my butt off on the chairlift because i just got soaked from some pow shots? Absolutely.
Ive had many days where my shells kept me dry and therefore warm. But ive also had many days ripping night laps or hitting park where a hoodies worked just fine
Think of it this way- you and i go ski the midwest on the coldest day of the year. (excluding the UP). I wear a hoodie and maybe a puffy over my base layer. Then we go ski somewhere PNW on a warm pow day. You wear a hoodie and il wear a shell. We will see who is happier at the end of the day.