My guess is Vlad wanted a deal closer to 500M and the Jays were offering a deal closer to 300M. Since we're all speaking out of our ass, thought I'd join the club lol.
Front office should have already known Vladdy's number and if there was realistic wiggle room much sooner. Just trade the guy for the best package you can get but I doubt a front office that has their jobs on the line will do exactly that.