What people want is for airsoft to be legal. The current law's interpretation and implementation now supports that, well, maybe except for pistols.
To introduce licensing for airsoft would dramatically change the legality of airsoft, paintball and airguns in Canada, and it will unlikely change for the better. The law would require major rewriting to support licensing and registration of airguns, to the point that it'd be easier to put a ban in place.
Look at it this way, has progressively more complex licensing cemented gun ownership in Canada? Hell no.
"The Bird of Hermes is My Name, Eating My Wings to Make Me Tame."