The only way a Queen alignment can possibly work is if a Union Station GO train tunnel goes ahead at the same time. Putting the DRL on Queen is going to leave waterfront residents heavily dependent on GO Transit to get around because Queen Street is not within walking distance of the waterfront. Building new GO stations at Spadina and Liberty Village is encouraging but this is not going to help unless the Union Station capacity issue is solved and the Lakeshore and Kitchener lines can handle 30000/hour. If the Union Station GO tunnel is built then a Queen DRL + GO serves a larger area than a King DRL, but without a GO tunnel, a Queen DRL is going to leave GO overloaded and a Queen DRL is too far away for people living south of King Street to walk to.
Why are you still insisting the DRL should serve waterfront residents? It was never supposed to be one of its goals! So a Queen DRL can't, but a King DRL 350m to the south magically solve all the problem? You will have to come up with better arguments.
The point is that it will overload GO if the DRL runs along Queen Street. Few people going to destinations south of King Street will use a DRL that runs along Queen. Therefore, people going to Exhibition Place, CityPlace, the Rogers Centre, etc. are unlikely to use it. The result is that they will overload the GO Lakeshore line which will require a major capacity increase.
When exactly do you see the GO going to Exhibition Place, CityPlace and Rogers Centre "overloaded"? At 8:30am Monday- Friday? What do those riders go there for??
During the off peak hours, even the Yonge line is half empty most of the time where you are always guaranteed a seat, so you expect the GO to be overloaded and have "capacity issues"? Where is your math?
You keep missing the point that very few people need to go to Exhibition Place, CityPlace and Rogers Centre during rush hours
so there is not a need for the DRL to serve these areas. I start to question your real motivation for arguing for a King alignment because nothing of what you said makes practical sense.