I mean, it arguably already is (it was originally supposed to be opened in 2o20, now it's 2021), and so are:Maybe Eglinton will join the race
Finch (2020, now 2023)
Sheppard (2020, now never)
Hurontario (2021, now 2023+)
Hamilton (2021, now 2024+)
Every Transit City LRT (2016 I believe... now god knows when)
KW's delays are worse in my opinion. Ottawa had a massive sinkhole to deal with.
To be fair to Waterloo, the majority is not the fault of Grandlinq, that blame goes to Bombardier. Still, I wonder how much that sinkhole was actually responsible for in terms of setbacks for their system.