First of all, as the update to the article says, this doesn't make it illegal to sell english versions of video games, only that if there is a french version available it must be sold along side of it. This does not lead to delays of games and will not make companies stop selling French versions. Actually, since 2007, the opposite has been true with most new titles having french options which broadens the game market, not shrinks it (ie. there are lots of people in quebec who don't speak english).
Remember that the *only* official language in Quebec is French. Moreover, 80% of the population speaks French as their mother tongue, vs. 8% english.
Finally, language is important part of culture. Language protection laws have been really successful in Quebec and are part of what makes it such an amazing place with a really vibrant, rich, cosmopolitan, and arts-rich province. If you live in Quebec and have seen the rest of Canada (I mean for more than your 3 or 4 year university degree), I think you will agree that Quebec is a unique and special place, due mostly to it's french background. Canada is so huge and has a huge amount of diversity, Vancouver, the BC. mountains, the praries, the badlands, Ontario, Quebec, the Maritimes, Northwest, Northeast, Canadian Sheild, the north praries... and many more, each distinct for different reasons.
Why are all these anglophones so upset about a bill that promotes french culture in Quebec without affecting them nor preventing any gamers in Quebec from getting english games on the same schedule they would have without the law?