UVA's vote is a contingency vote in that expansion must include VT.
All the articles I read (including the one you're referencing), said they "asked" that it be VaTech instead of BC - which is not in line with what most of the others want (including the team they want to lure - Miami).
I think that Virginia's "asking" for VaTech is with the realization that it's unlikely to be VaTech. This is more for show for their governor (and to avoid future state funding problems) than for any absolute contingency that their vote depends on it being VaTech.
You have to balance Virginia's request with the requests of their target (Miami) that it include Syracuse and BC - and with Syracuse's need for another northern team in their future conference (perhaps Miami and Syracuse say "no" if it isn't BC - then what?) - and with the North Carolina schools aversion to VaTech as an institution.
Finally, the world of big time college athletics is about money - and the Boston College media market is money, while the VaTech media market is not - especially with that market partially covered with Virginia. The conference wants a big huge TV contract to help make this profitable - and adding the 7th largest media market is what helps get that offer from the networks. Boston College is the heavy favorite here to be the third team in.
Besides (coming back to sports), BC is a better overall athletic program - while VaTech is a one-sport school.
But let's say you're right and the ACC expansion doesn't go through without VaTech. Let's also say everyone else succumbs to Virginia's request so Miami, Syracuse and VaTech go to the ACC. In that case, expect that IF the Big11 picks up any piece of the old BigEast (which is very unlikely) - it'll be BC they consider, not Pitt. I think BC is a school the Big11 could live with adding - but the rest of the potential BigEast stragglers (Pitt, VaTech, WestVirginia, UConn, Temple and Rutgers) do not interest the Big11 at all.
Of course, the most likely outcome concerning the Big11 is to continue waiting for NotreDame's admin to again ask to be considered (which their athletic department turned around and rejected afterward in 1999). This time, they'll probably ask NotreDame to be academicly and athleticly committed to joining before the Big11 bother voting on extending an offer.
This part of the ESPN article is kind of interesting though - isn't it?
Miami, which has a strong alumni presence in the Northeast, is not expecting to receive a counter-proposal from the Big East and the Big East isn't planning to present one, ESPN.com has learned. Joining the ACC is a decision Miami will make on its timetable.
Apparently, Miami and Syracuse and BC (ok fine - or VaTech) will be too busy discussing their new home in another room? Are they even going to go to the meetings - or just turn in their one year notice and go golfing?
The last thing they'll want to do is wait until the schools meeting raise the fee for leaving before the 3 turn in their papers!