Indeed. And "Vulcan" voting in the Coridan issue as one planet might be an artifact of all Vulcans being so bloody single-minded about everything, lest somebody think that there's a fault in their common logic. Quite possibly Tellar would have been split on the issue even after Ambassador Gav reported on his Babel findings, and there would be no "Tellarite vote" - indeed, such a thing might be a contradiction in terms, considering how argumentative the Tellarites are supposed to be as a species.
...Although admittedly the episode does not literally feature a "Vulcan vote". Gav just asks how Sarek will vote personally, and Sarek says that "we" will vote for the admission, supposedly indicating that all of Vulcan is behind him on this.