Yep, gloves are real funny, for temp ratings. I think it's all about how much body fat a person has, with hands being one of the most vulnerable body parts.
I had some really nice Pearl Izumi gloves before, with padding & light insulation in the perfect places. I forgot them, sitting on the counter of a remote mountain store, and by the time I realized it, I was way down the other side of the mountain, with frozen hands. 😭
I wasn't about to re-climb that mountain, to get them back. It would've been 2 or 3 times worse. 🙄😉