Aren't Vulcans considered very low level telepaths?
They can't read minds without mind melding and even then it's not without some difficulty. Betazoids read minds effortlessly but as pointed out, all the Batazoids on Voyager had died. So Janeway's statement is correct if you consider she was asking for telepaths that read minds without anyone knowledge which Vulcans can't.
The excuse for Janeway not remembering Kes' warning about the Krenuim is time had been altered again after "Before & After". Proof is, Seven has to find the torpedo frequency which means Kes never did.