Censorship of free speech in Canada – why was Vanessa Beeley de-platformed?

The thought has occurred to me that since my views on Syria and the White Helmets are identical to those of Beeley, suppose I proposed to give a talk at a Canadian university or public library. Would I, as a retired professor and senior scholar, be blocked in the way that Beeley was? Given the precedent of what happened to her, why should I be treated any differently?