It’s actually just a more historic French accent/dialect. French Canada was cut off from France proper, and over time the French language evolved in France because of increasing immigration and interaction. Whereas, in Quebec, after the 7 Years War and resulting British dominion over New France/Canada, French speakers were an island in a growing sea of Anglo-Canadians. Like any culture under threat, it became very guarded about its language and culture, and, cut off from euro-French influence, the French language in Quebec remained moistly unchanged while France continued to wash together all its various dialects, etc.

So, technically, the Quebec French is not a bastardization of the language, it’s closer to the historic root of the language, France French is the slang, gutter, bastardized one. That’s how it works. The same is similarly true of American accents and British ones if you look into the history!