What makes you think that if it was just the game he was put in for that it would have sparked a larger conversation? What exactly is it that you believe was swept under the rug ?
I've repeated myself at least 4 times now. But I'll say it one final time:
The "conversation" is whether you should be scrutinized for the thoughts you have in your head vs the actions you conduct in real life. They pursued this guy off of an assumption that the thoughts in his head equate to something he'd do in real life. They were fortunate because for once they struck gold in allegations and evidence. The problem is that in practice you'd have to arrest 100 innocent people before reaching someone who fits the bill. (Don't take the numbers as actual statistics, I'm just making a point.)
What people have a hard time wrapping their heads around is that in any other circumstance, this would be considered widely inappropriate. For instance: If you make a slasher film, or a video game that involves the deaths of fictionally made characters -- should you be under investigation for mass murder? Because it's that same exact process that started their investigation in the first place. It's being swept under the rug because for once they had a good guess, and they're running with the idea that "The system works".
The problem is that it doesn't actually work when it's simply a gamble they won for once. If it did, you'd be hearing about this ALL the time. Taking into account the thousands of games and fictional content that are out there, finding even 10 people wouldn't be enough of a justification to have a law made like that, taking into account the hundreds, if not thousands that didn't do anything. The law insists that "Whether you did it or not doesn't matter. We're arresting you because you thought about it, and made it known that you thought about it."
Think about anything that would be considered illegal. THINK about drugs, murder, molestation, etc. Did you do it just then? Should you be arrested for having likely done it, despite the fact that all you did was think in the safety of your own mind? Because that's the framework they're working with, and is being swept because they don't want people to contest these hypocritical talking points.
If you're wondering why I call it hypocritical, I've already addressed this too: If you're going to make a law like this, it should be across the board; and not based off of biases, singling out one type of criminal. And if you can't do it across the board, then you shouldn't do it at all. Because, if the system doesn't work on all accounts, then it doesn't work in general.
And lest I forget, this leads to the other part of the problem. Something else I brought up time and time again: Conflating Fiction with Reality. Your actions in real life are not the result of passing thoughts you have in your head. Characters you made up in your mind are not real people, and don't have human rights, because they don't exist. Yet people keep asking for various details on characters in a way that makes them believe that any thoughts they have on them somehow reflects who they are as a person in real life.
This is because people are afraid of being judged for thinking out-loud, even when what they're thinking about doesn't exist irl
.
If you can't separate your imagination from reality, you're cooked. If anything, that's who the laws would be made for, if it was a consistent talking point that everyone in the world thinks that fictional characters are somehow real to them.
This is why Actors aren't the characters they play on TV. This is why playing MK doesn't actually make your every-day joe go out trying to perform fatalities. If any of this shit does happen, it's because the person in question was already fucked up in the head. This is why it's well known that good laws are never based off an exception. It has to be a status quo.
So if the investigation was based off of, say, previous tells that the person may be a deranged individual. Maybe he did something in the past he was reported for, maybe he has a known mental illness, or something that tips off investigators that "Yeah, maybe him thinking about this shit will lead to something worse." Then sure; the investigation would be open and shut. But they didn't do it like that.