It's also doing the US a big favour which Canada can call up for in the future.

Canada is also apart of five eyes and NATO. We have more than enough of our own paranoid security hawks who'd push hard for something like this. Intelligence agencies can be quite persuasive.

Not really Canada needed another source for selling its oil and possibly lumber because America loves strong arming it in trade deals because it's 1/10 the size. So geopolitically this move hurt Canada quite a bit. It could've gotten itself out of it by releasing Meng on some technicality but would've then felt Trump's ire.