I think it was just a lazy way to write a headline about how everyone in the security community is talking about this case --- which they are. It's a lot more interesting for readers if something important is at stake --- which I think really nothing is.

> If a cop is arrested under accusation of dealing drugs on the side, it doesn't suddenly send a chill through the law enforcement community that works to take down drug dealers.

How do you know that it doesn't? White hats are counterintel agents effectively. If a counterintel agent is arrested for doing something that could be deemed as part of his job, why wouldn't it 'send a chill' through the community?

No they aren't.

You're not quite making the right analogous scenario. It's more like if a neighbor you know who has some strong vocal opinions agaist the current regime suddenly gets arrested on some charges like conspiracy to incite revolt. I would be rightful to be afraid of being charged similarly if I had similar beliefs and had knew I'd had similar conversations as my neighbor.