There was some hinting of that in "All Our Yesterdays."
If you mean a hint that Spock was telepathically influenced by other Vulcans from the era, yeah, that's one way of handwaving the episode's nonsensical approach to time travel. But aside from my problems with that idea, even if it were true, I have a hard time believing that Vulcans could be unaware of it to the extent of convincing themselves that most of them weren't telepathic. It would've been much harder for the Vulcans of the High Command era to dismiss telepathy as a minority practice if it were a constant part of every Vulcan's everyday existence, as opposed to a more occasional thing.


