Well, it makes sense. Canada still has a significant English-speaking majority. Even if Québec in isolation has a French-speaking majority, there's a very large incentive for French-speaking citizens to learn English because their province is surrounded by primarily Anglophone regions.

There are also other factors at play. Montréal has a fairly large community of native English speakers and receives a lot of tourism from Anglophone Canada and the United States due to its status as the largest city in Québec (and second largest in Canada). It also gets a lot of immigrants, many of which are (at least initially) more proficient in English than in French.

I can't say I'm entirely familiar with the situation in Switzerland, but as far as I know the country has four official languages, none of which are English. It also doesn't border any English-speaking countries. It seems English is mostly used as a lingua franca for communication between citizens who don't otherwise share a language rather than due to the direct presence of native Anglophones. Also, Romansh aside, all national languages of Switzerland (French, German and Italian) are spoken in areas that directly border a country where that language is the national language (France, Italy, Germany/Austria). With Switzerland being in the Schengen Area, its linguistic regions may be considered to be part of a much larger individual linguistic communities, which I feel may also diminish the need to learn other languages.

> I can't say I'm entirely familiar with the situation in Switzerland, but as far as I know the country has four official languages, none of which are English.

The language of French Switzerland is French. You'll never hear German, Italian, or Romansch. If you only spoke German and not French or English, you really couldn't live there very effectively (only places like Bern or Basel are truly multi-lingual), yes you'll get your official docs in German but then what? I assume the same is true in German speaking Switzerland, and I have no idea about Italian Switzerland.

If a Swiss German and Swiss French met for coffee, what language do you think they would wind up speaking? Perhaps English if neither had comfortable fluency in the other language. Not to take away from your point, but English can get you really far in this world.