I agree, in US fewer and fewer games are banned (as a percent of all video games). This is because the number of avenues for games publishing is mushrooming, opening the door for many devs to publish games that wouldn't have gotten wide exposure before. At the same time, the costs of game development is dropping, creating a space for indie devs who aren't making the next AAA shooter.
This creates a vibrant scene where we're seeing games about topics that would have been unthinkable before, because they would have been considered unviable and not worth the investment. Games about censorship. Games about cancer. Games about all sorts of topics, including ones that would be banned under traditional media, either by a govt agency or through self-censorship.
It's the golden age of gaming!