Speed limits impact travel time, and there is a real and not-negligible chance that Eglinton would have its speed limit reduced (despite your characterization as "fearmongering" and "fake bullshit".) Especially since City planning has this bizarre vision of Eglinton west as being "just like St. Clair", speed limits will likely be reduced to improve the pedestrian experience.
Lower speed limits part of Toronto plan to reduce pedestrian deaths
(this is targeted at specific arterials across the city, not a blanket limit, but the fact that a center-right car-centric mayor proposes this shows what could happen if we get a more downtown left-wing mayor)
Reduced speed limits part of Tory's 'master plan' to improve road safety
Lower Toronto speed limits by 10 to 20 km/h to protect pedestrians, chief medical officer says
Dr. David McKeown advocates a 30 km/h speed limit on residential streets and
a citywide speed limit of 40 km/h on all other streets
Life in the not-so-fast lane: Montreal to reduce speed limits by 2019
Montreal drivers are going to have to hit the brakes as Mayor Denis Coderre announced plans to reduce speed limits on many of the city’s streets.
The new limits will be:
- 30 km-per-hour on residential streets, in school zones, in front of playgrounds and on commercial streets with one lane in each direction.
- 30 km-per-hour in Old Montreal, with some roads having a limit of 20 km-per-hour.
- 40 km-per-hour in industrial areas and on the main arteries of the city centre.
- 50 km-per-hour on the main arteries of sectors outside the city centre
CITY OF MONTREAL MULLS OVER REDUCING SPEED LIMITS ACROSS THE ISLAND
However, I don't think the reduced top speed would have as much of an impact on travel times as all the red lights that it needs to stop at.
Elevated sections are not unusual for LRTs. For instance, here is Calgary's "new" (2012) west LRT :