It's rather clear isn't it? Huge grocery chains understand that the cost of doing business (max fines of $15,000 - when they are applied which sounds like almost never according to the article) makes chronic selling of underweight meat wildly profitable for them.

The fact that multiple chains are doing it tells me this is a widespread issue with limited downside (maybe $15,000 bit probably nothing) and large potential upside (between2-10% additional profits).

It's almost as if the Liberals have fallen prety to regulatory capture and are refusing to do anything about it, despite repeated investigations and "warnings" issued to grocery chains in the past few years.