Just catching up on this thread.
Distillery intensifying and adding thousands of residents is a good comparison to Queen/Sherbourne/Richmond doing the same, where ROQ and 49 Ontario and Celeste are going to be adding a lot of people to an area that both sorely needs more bodies but also has the bones to accommodate that densification. Distillery otoh has a specific time of year where it gets overwhelmingly busy without residents living there, to the extent that it's noticable on the 504 on King and traffic in general, and to the extent where adding thousands of bodies may actually be a real issue moving forward. I'm all-for the gentrification densification of Moss Park-Corktown-South Cabbagetown but in Distillery especially things will eventually come to a head as you allude to. If only the Ontario Line was opening a few years earlier so a lot of the upcoming further strain on traffic in the area could be alleviated.