The funny part about people bringing up the "This was supposed to be an LRT!" historical argument is that if you want to go back in time, the original, original plan for the Scarborough transit line was to be a subway.
The history will show as
Subway > LRT (using TTC streetcars) > ICTS RT > LRT > Subway.
So really, we are getting now what was always originally the plan.
This bit of history always seems to be omitted by some *COUGH* Steve Munro *COUGH* who always whines that the entire project was supposed to be an LRT in the first place so the LRT is the right way to go.