The province provides a summary of the Benefits of ALRT on the Evergreen Line page:
# Why was the technology for the Evergreen Line changed from Light Rail Transit (LRT) to Advanced Light Rapid Transit (ALRT)?
* The Business Case, released February 1, 2008, recommends Advanced Light Rapid Transit (ALRT) because it:
o will carry two and a half times the ridership of LRT (based on 2021 ridership modelling), ensuring it will meet current and future demand and support The Provincial Transit Plan goal of doubling ridership by 2020
o will enable faster travel times and can operate with greater frequency
o will seamlessly connect to the current SkyTrain network, including the Expo and Millennium Lines, and can integrate with the Canada Line and regional bus and West Coast Express network and move people almost twice as fast as LRT technology
# What is the difference between Advanced Light Rapid Transit (ALRT) and Light Rapid Transit (LRT)?
* ALRT (SkyTrain) is automated and driverless and runs primarily along an elevated guideway, thus avoiding the potential for conflict with vehicular traffic inherent with at-grade LRT operations particularly at intersections. ALRT has greater capacity than LRT and also provides the opportunity for full integration with the existing SkyTrain system which would eliminate the need for passengers to transfer at Lougheed Station.
* LRT (Light Rail Transit) is a driver-operated system. Vehicles operate within a largely at-grade and segregated right-of-way with grade-level crossings at intersections requiring signal priority.
http://www.th.gov.bc.ca/evergreen_line/faq.htm
It appears at least that the BC and Canada Governments are on our side. So I would expect that they would have the exact same opinion about the UBC extension.