FWIW I took in the Jays last night, coming home on LSW. The 22:45 Union-West Harbour train took a 20 minute delay at Union, because a) it took that long to load, to absolute full and b) it then took that long for the crew to clear several passenger alarms - which under the crowded conditions required instructing enough passengers to offload to allow crew and security to enter the coaches and verify that the alarm was false. It did appear that one of the alarms involved a passenger who possibly fainted but was not seriously ill.
When the train reached Exhibition, that platform was quite full of passengers but only a few managed to board (mostly by being utterly aggressive).
There were plenty of GO security people at both Union and Exhibition, and they were attentive as far as ensuring that the crowding would not prevent the doors from closing - but did not attempt any real crowd control. There were announcements about how there was another train following, but that only had any credibility by virtue of the first train being delayed. There was a lot of grumbing about "yeah, sure"...which I can't blame people for making.
I have to say that having the upper levels of bilevel coaches that full of people is profoundly unsafe and cause for concern. Unless someone pulled the emergency brake (from the lower level, so unreachable from upstairs) and brought the train to a stop, even the emergency window exits would be unusable.
It's a single point of data, but it says to me that the situation is not merely inconvenient or needing improvement - but actually rather desperate.
ML brass need to publicly acknowledge it as such. If GO can't handle easily predicted peak crowds on a Tuesday evening....
- Paul