I understand they'd be edible, but surely the point of noodles is to have something...warm?
Besides, even North East Asians say they're okay.
https://soranews24.com/2017/08/27/can-you-make-instant-udon-...
sounds weird, right? except the western equivalent is a pasta salad which you probably eat all the time.
think harder about food.
I understand the concept of cold noodles and all the other varieties of noodles, but to me instant means hot, maybe the branding is just too strong.
(Also I am south asian, pasta salad is rather fancy thing here)