I may be mistaken, but these oils as a group seem to have a lower average NOACK than would a similar group of coventional oils.
Virgin TBN isn't as important as TBN retention, but you already know that.
These oils should offer a higher VI than would a similar group of conventionals, as you noted.
The price premium for synthetics is now low enough that the difference in cost is hardly a deal breaker.
PQIA's VOAs are certainly very nice, but the true test of these or any other oil happens at the other end of its lifecycle.
These oils look okay, but a series of UOAs will show us just how okay they really are.