To me, the biggest elephant in the room is that giving the train absolute signal priority so it experiences no delays at intersections is not even on the table. That's a silent admission of the fact that speed, frequency, and reliability of a rail line will always be constrained by its points of interaction with people and vehicles at intersections and level crossings. An urban transit line that doesn't have a dedicated and secured right of way from end to end cannot be considered rapid transit. Full stop.
I hope this growing public debacle, and the quickly rising anxiety of politicians on the eve of an election year, both soon to be amplified by the opening of Line 5, puts paid to the fantasy that rapid transit performance can be provided without a dedicated and secured right of way. The tens of billions of dollars going into LRT projects and years of construction will not yield rapid transit. The lines have every potential to provide significantly better transit service than the mixed traffic buses they replace, but they will fail to live up to the promises that have been made all these years and people are right to be asking some very acute questions.