"Why would it be different here?"

Because this is Canada, a different country, where she has no power. She isn't coming here to convince Ontario of anything, she is coming on a fact-finding mission that might actually change her mind. Now the publicity has obviously made here cancel her trip, so there is no possibility of her learning something that might change her mind.

And it is perfectly possible to have different ideas about educational policy without "wanting to segregate schools again". That is silly.