This is a very difficult question to answer, in my view, Mr. Barrett,. I appreciate your asking it.
I'll just say it quickly on two levels.
Suppose that the Communist Party of China has spread misinformation about the positions of parties or voters in ways that are untrue and that are damaging. Perhaps they are true about positions, but they've spread those ideas and amplified them. That may have had the effect of changing voters' views and changing the views of Chinese-Canadian voters. It's very hard empirically to say so.
Even if it didn't, Mr. Barrett, the potentially equal effect is that we've spent all of this time wondering if the integrity of our elections has been disrupted. That is something that non-democratic regimes want us to do. They want us to wonder whether the integrity of our elections has been corrupted. The only thing to do then is take that possibility very seriously.