I wish it weren't, but it is.
It's a very reasonably held apprehension, based on past experiences. Also, given the much more stringent requirements under the TFWP, we have had a number of issues with foreign workers not being treated to the same standards as we expect in Canada.
On experiencing significant wage differentials, going back to a lawsuit with HD Mining in British Columbia, the human rights commission ruled that Latin American workers were being paid less than half of their European counterparts. Those practices exist as it is, and with the addition of much more relaxed entry standards, I think it will just get worse.