Given that you withdrew the original application and your new one is quite new, I doubt a webform at this point will garner much sympathy. Until the move to Vancouver came up, you were prepared to wait. Now, that changed circumstance makes an early arrival time for your wife all the more desirable. I would not expect that to carry much weight with the IRCC.
I do not suppose firing off a webform carries any serious downside risk, although to some, it might be seen as a sign of some desperation to get your wife here and to keep her here. Also, there are many stories on this forum of webforms getting little or no response for long periods.
As an aside, moving from TO to Vancouver, sight unseen, should not prove all that intimidating. I did it some time back. Packed all my stuff in a 5-ton truck, drove out in 5 days and it all worked out. Best of luck to you.