> It's because we've nationalized gambling[1], and so all gambling/contests need to be approved by the government.
What you're describing (the state has a monopoly on gambling) is applicable to many other jurisdictions in US/Canada that aren't excluded from the website.
Yeah, it doesn't have to do with nationalized gambling. It has to do with strict sweepstakes laws.
* Register the sweepstakes rules and all advertisements used to promote the contest with the Quebec government at least 30 days ahead of the sweepstakes' launch.
* Pay a fee of up to 10% of the sweepstakes' value, depending on who is allowed to enter.
* Offer the sweepstakes rules in French as well as English.
1: https://portail.lotoquebec.com/en/home
https://en.wikipedia.org/wiki/Loto-Qu%C3%A9bec
https://en.wikipedia.org/wiki/Gambling_in_Quebec