They've never revised the law. Only the interpretation. The Firearms Act on prescribes the definition of a replica firearm, and the part of the definition that's keeping us afloat is "cannot cause serious bodily harm". What's changed is RCMP testing to determine what the minimum fps requirement is to cause blindness. A few years ago the RCMP did tests on a cow's eye or something and determined it to be 407fps, and a year or two ago they reduced it to 366.
Considering how shitty it all used to be, I'm pretty damn happy with the progress we've made.
Guardians of Asgaard - KF32
VFC H&K 416C
VFC KAC SR16 JL Billet SBR
TM FN Five-seveN