The situation is heartbreaking but unfortunately studios shouldnt have to stop making hard hitting stories at the fear someone isnt doing well. Instead we should be asking why didnt the people in the individual's life help them before they got to a point where a video game did it
As sad as it is, many people have killed themselves while consuming some form of media. Like the song "Gloomy Sunday" popular during WW2 and the Great Depression. But the song didn't cause that directly it was years of built up pain and the media was just the final straw.
That being said there is a reason why we have to make sure we, or the people around us, dont consume certain content when we are in a certain mindset. Thats the reason why many forms of media have warnings at the start or age ratings in general.