I worked in the building with the Point Zero sign a couple of years ago and I enjoyed seeing all the buses bound for the TCV arriving just under my office's window (I was on the Mansfield side of the building, second floor). Back then, there were still quite a few RTL Classics (some with rollsigns even, the 9-000 series I believe) during rush hour. And also watching trains leaving Central Station of course!
Even in the afternoon the bus terminal in downtown is overcrowded. I must only imagine that during the morning it is worst. I have a friend who lives in the south shore and he uses those buses. Many times he had to disembark in the streets instead of using the terminal.
The stm should kept a few classics as spares but the stm loves to waste tax dollars on junk buses that catch on fire. STM = Stupid Transit of Montreal.
