My impression was she was making a statement about
some nerds, yes, but people may interpret it as entailing a general slur.
Was it also deliberately deceptive to interpret Trump's famous statement about Mexicans as a slur on the whole group? I don't think so.
I observe people of all sorts making ambiguous statements deliberately in order to express bigoted opinions while not engaging with those who may be offended.
None of this implies I think defending "nerds" as a class is important - but I don't think being offended is necessarily "deliberately deceptive".