That’s pretty great to get it even when not in the Premium Class section.
I’ve flown AS several times since they joined oneworld and each time at least one FA has said “thanks for being an Emerald and thank you for your loyalty” it’s a very nice touch. I wish they would make the upgrade process a little more reliable, I’ve always had to contact an agent once I’m in the upgrade window and/or ask at the gate to be re-added to the waitlist.