I do. I don't have any information about what the Canadian authorities did or didn't do, or what their involvement might have been, in the DOJ indictment. I'm only relying on publicly available documents, including the DOJ's published affidavits.
In my experience working in the U.S. government, it is very possible, if not likely, that there was Five Eyes co-operation if this was an intelligence operation that discovered this Russian intervention through signals intelligence. Just because it's not public that the Canadian authorities were involved doesn't mean they weren't. I can't say one way or the other whether or not they had an involvement in this particular case.
What I will say is that it's very difficult to detect this kind of operation of payola influence using dark money as a foreign power, because there are so many different YouTube and TikTok channels out there that will operate on a pay-for-play basis. As I read the DOJ affidavits, it was only through wiretaps that they were able to discover this one.
Partly, I put that at the feet of the technology companies who simply don't monitor sufficiently for patterns of propagation characteristics that indicate the probability of some kind of malign influence or coordinated inauthentic activity.