
I don't think we remember often enough how big of a difference in power humans without a volundr are in comparison to divines.
I mean, sure, Raiden is not actively trying to hurt Brunhilde in any way, but Brun still stopped a massive man with probably the biggest muscles in all humanity trying to playfully tackle her with only one hand and without effort.
And she herself is a demigod, who are considered lesser than the other divines at least in reputation and we even get told that their primary ability (turning into weapons) was never supposed to be this powerful anyway without the volundr.
The gap between God-human in prowess is indeed supposed to be so big that Ragnarok being treated as a joke was warranted, in the god's eyes, even a random god in the audience could solo all the 13 human fighters.
Qin is, obviously, a half-exemption, and only half because he managed to defeat a seemingly divine being (tho "demon god" is a bit confusing... because demons in this verse are one thing and god is another... divine nonetheless!) by using their power against them. So is Adam, as his ability seems to be literally to copy the divine techniques... Point still stands prowess-wise!
Put some respect in the valkyries and remember that without them, we'd be massively screwed.