There were big problems back in the eighties and nineties with overcapacity in many parts of the world. DFO instigated policies that led to fleet reduction. In doing that, it favoured the large-scale, easy-to-manage fleets. This is one reason why we have lost the small-scale fleets on the west coast.
That fleet is easier to manage and, yes, it is more efficient, but that's being done at the cost of the communities that cannot survive. In many fisheries, DFO's policy leads to extremely cautious approaches to management and to lower catches than could sustainably be taken from these resources.