Yea I'm not a Carney hater but this is absolutely not him critiquing the Canadian tax system.
Personally I don't really care much about our business tax rates as I don't think nearly as many companies are able to outright dodge taxation like in the US. I think our main issue with corporations here is monopolies, anticompetitive practices, and foreign ownership. Which I also haven't seen much movement on tbh, other than trying to attract new players to our markets (vaguely competitive).