Sure, I can't tell them they're "wrong", i.e. I think the self-reported subjective feeling is probably accurate.
What I object to is the implication that Americans should punish themselves by refraining from using normal words in their own language because Germans feel bad about something Germans did.
The implication is that if they want to market to Europeans (which I'm sure they do), they probably shouldn't use that word. I agree Americans see it in a positive light, including me, though I find superhuman generic to the point of background noise.