It's understandable that the RCAF still wants it; There's literally no other option with the same capabilities. The Gripen is an excellent plane, but it's not a fifth gen fighter. Unless we want to start buying planes from China, we're SOL if we want another fifth gen option. I'm not personally advocating to continue with the purchase, I think we should go ahead and build the Gripen here in Canada and use that as a stopgap while we get on board with one of the European sixth gen fighter programs. But I can absolutely see why the RCAF doesn't feel the same way. They're a small air force and they need every advantage they can get. Based on its performance against F-16s I have no doubt the Gripen could shoot down Russian fighters at a ten to one rate, but I also have no doubt that the F-35 would be closer to a hundred to one rate (in Fermi approximation terms), and one could certainly argue that we need that if we end up on the front lines of a war with Russia.
I still lean towards the Gripen, but I'll admit I go back and forth on this. It's not a cut and dry decision either way.