Because sometimes a witch hunt doesn't deserve more than a couple memes which blow it to shit as the fake ass witch hunt and waste of tax payer dollars it really is.
In 1983, there was a US embassy bombing, and 307 people died (241 of them US Marines). No GOP witch hunt of anyone, especially not Sainted President Reagan, about why this happened.
And what about the "investigations" into President Bush and the failures of his staff? Oh, wait, there weren't any.
Of course, it's been 30 years since Beirut, and the GOP didn't really prefect the waste-taxpayer-money-on-total-bullshit witch hunts until they wasted $60 million proving President Bill Clinton boinked a consenting adult, in the 1990s. Well done, assholes. That's $60 million the American people won't get back.