That's a shame Mike as, IMHO, this site is needed more than some of the sites in the GTA. Going from Toronto-Stratford or even Toronto-Kitchener can be dicey in cold weather. In the past I have detoured from Stratford to Woodstock on my way back to Toronto for a bit of Supercharging to ensure that I had enough juice to get home, and that was a bit out of the way. And this will give you an option other than Woodstock for Toronto-London travel, especially if you don't have destination charging and London is really lacking for EV charging.
I was in London this week as I was spending a day at UWO. There is no charging on campus and my preferred hotels did not have any charging nearby so I had to stay at a less preferred hotel that had a couple of HPWCs.
The other sites in the GTA are nice to have but Cambridge will really help to facilitate highway travel. I would have preferred to have seen this site get priority. But once they are all built no one will remember.