I am an air weapons controller, I can assure you that CAS is a major priority. The prob here has nothing to do with CAS not being sexy, or zoomies not interested in supporting the army. It is about very, very limited resources being used for way too many tasks.
We only have 80 F18s in 3 sqns, 1 training sqn in Cold Lake, and 2 ops sqns, 1 in "The Lake" the other in Bagtown. The role of the training sqn with their 24 or so jets is to train new F18 pilots, they do not hold NORAD alert, they do not deploy to support overseas ops, they train pilots. The two ops or "Gun Squadrons" with approx 24 jets each (48 total for operations at home & abroad) are required to provide NORAD alert fighters, conduct air to air training, BAI (battlefield Air Interdiction) training, CAS training, and any other task thrown their way. Keep in mind that if a fighter sqn "owns" 24 jets, not all of those jets are avail each day. Some are on NORAD alert, some in depot maint (long term maint), some are in sqn maint. Pilots are also in short supply. One day they hold NORAD alert, the next day they fly a CAS training sortie, the next day a 2 vs 2 air to air training mission, back on NORAD alert again, on & on.........
The USMC F18s are primarily tasked with CAS. It is their main mission, as are their Harrier pilots. USAF A10s are dedicated CAS units, they do nothing else.
Back 25 years ago we had Voodoos for NORAD, that's all they did, F5s for CAS, that's all they did, and F104s for CAS & BAI, that's all they did. They were very good at 1 or 2 main mission types, they did not have to cover the entire spectrum of fighter ops.
My opinion, we do not have nearly enough fighters. In the short term we have to make do, NORAD & CAS are the priorities today, train for them. In the future we need to expand our fighter force to more than 80 jets. Have dedicated Air Defence sqns, on for both eastern & western Canada, and have dedicated CAS/BAI sqns to support army ops, IMHO.