The short answer is we need tanks and all the other kit of a "real" peacekeeping brigade to overmatch any possible adversary, protect our forces and project power to accomplish the mission objectives.
Our inability to do so means "peacekeeping" Peace support operations or any other intervention of that sort will be totally ineffective,as you can see by looking at recent history. Canadian troops in the Balkens provided about as much muscle as was possible in the early 1990s, without really changing the overall situation. One reason the ROEs were so restrictive was to keep our guys from being sucked into firefights with superior Serb, Croat or Muslim formations. Without the muscle to back effective ROEs, our troops were mostly spectators to a ghastly dance of death, and if the Serbs or Croats felt we were in the way, why taking hostages or pushing troops out of OPs was laughably easy. When President Clinton finally decided to intervene, the Americans came in with a "hard power" force capable of overmatching any feasible opposition, which is why we are in Bosnia supervising the Dayton Peace Accord, rather than the Montreal or Toronto Peace accord....
I'm a bit surprised our talking heads never seem to get that point.
As for PPCLI guy, it is true you can't get it all, but we in the military community need to make our point at every opportunity to open people's eyes and let them see what they need to spend to get the results they expect. Effective "peacekeeping" will be very expensive, and Canadians will have to make a real choice: pony up the cash, or get out of the game.
In the end, I wouldn't mind if we were told to get out of the game by an informed public opinion, at least they will have made a choice and will know what the potential consequences are. Being cut here and there on a constant basis means leaving the game by default, and I am not sure if the Canadian public is really aware of the dangers they could (may, will) face if that happens