Yeah, it is certainly possible that this was planned and then some other costs or considerations came into play making it less feasible. I'm just not buying the DL team vetoing this. I have worked in executive management for 2 global corporations for 19 years. Neither of these corporations would have allowed a team from one division to make a decision that would hurt the corporation.
So, let me amend my statement. If the move of this parade/show to WDW makes sense, it would happen no matter what the DL team wants. That I can say with 100% certainty. Now, the DL team could have convinced upper management that it did not make sense, but the decision would still not be theirs.