No. I think both.... That's been very well illustrated since at least the time of Pierre Trudeau.
Professor Russell published a book called, Two Cheers for Minority Government. He pointed out that it's not a bad thing to have minority governments in Canada, because there is a need to seek a broader consensus before moving ahead with legislation, to get the support of at least one other party.
I would think there would be a greater check on executive dominance, in other words prime ministerial dominance, if we had sort of permanent minorities.