People are emotional beings. Simple as that. They grew up in Toronto with the subway meaning a specific thing, and wanted to see that thing expanded to new lines around the city. That is their vision in their head in the future. And when you offer up a different future, even one that is better, people cling to their own perceptions of what they imagined the future to be like.
You see this all the time in clinical psychology, people will literally be offered some amazing opportunity in life, and turn it down to follow the life path they decided for themselves when they were an ignorant 18 year old, because that opportunity wasn't what they wanted, even when the opportunity is objectively better.
People will then use all kinds of logic to try and convince themselves that the emotional thing they desire is better, when they have already reached a conclusion and are cherry picking evidence to support it.