Oh, they are absolutely will remember Hilary's emails, because:Remember Hilary's emails? Cause I don't think anyone will after this.
1) The Hilary emails form a stock "but both sides!" excuse for any security problem by the Republicans. Even if the Trump administration were directly texting US military secrets to Xi Jinping and Vladimir Putin, the Republicans would defend them doing so with reference to Hilary's emails.
2) The sort of people who are still that hugely bothered by Clinton's emails won't even be reading the news of Hesgeth's indiscretions. The media they access won't tell them, or if they do, the media will bury the problem with a mass "but it's okay really" explanations. Thus those people will continue to believe that the Hilary emails were a particular scandal.