The standard reaction of Canadian politicians, when they are facing minority Parliaments, is to opt for a single-party minority government. I suspect this has to do with this being the way they are used to governing, with all fellows from the same party sitting around the cabinet table.
Second, these minority Parliaments are typically short-lasting; 18 months is the average duration. It is understood by most partners that the Parliament will not last its full term, and it is understood also that at the earliest possible opportunity, the government will push the button and get what they seem to believe is due to them, that being a majority.