The difference being that without that capability in place, Canada doesn’t get to station F-35s, P-8s, CQ-9s, or AEGIS warships in Canada. And while I’m totally cool with Singapore-style permanent OUTCAN bases for those, the cost to post people and keep stuff in allied countries would probably break our bank faster than the Security Forces construct.
So the “competing interests” bit gets whittled down a bit when the big ticket items are contingent on the…uh…contingent.
But back to the RCN C-UAS gun - that is hopefully the last-tier option. It seems to me essentially a shotgun without the kinetic shot.