they were probably jealous that you were able to pull off a trade like that and they're like "nuh-uh i don't think so" and now they're gonna offer the guy other offers for soriano that are slightly less unfair.
that's why i hate league votes on trades. in my league we don't do league vote or commish vote. we do a "panel vote" where myself (the commish) and two other well-respected, fair, experienced managers appointed by me vote on all trades (unless they involve one of us, then a substitute is appointed) - 2 votes for and the trade passes, 2 votes against and it's vetoed. works the best out of any trade review system i've ever seen.