Also, if SV was broken, don't you think it would have AT LEAST have been placed in the A tier, if not the S tier, in the Ability Tiering Thread?
That thread looks at abilities in a vacuum (last I checked). If sandstorm is active, its good, if its not, its useless. Sand Veil does also impact on how good the pokemon could use the free turn. Giving a free turn to Gliscor or Garchomp (both of which have Swords Dance) is a lot more threatening than giving Jellicent a free turn. Therefore, I can understand its tiering. This is also ignoring that point that just because 10 users decided to vote it for B tier, does not mean the ability isn't broken. 55 People (suspect test voters who had a fair idea of the metagame) decided that Sand Veil on Garchomp was broken, to me, (as well as this thread), that gives me a pretty good idea on many peoples viewpoints on Sand Veil.