If you look at the incident your talking about realistically, you have to take into consideration that Patel was in Washington DC, and spoke with information given him likely from the on scene lead agent. He did personally recant it, and I through personal experience doubt it had any significant slow down in the investigation. He as I type now, is enroute to Utah along with Bongino.
Remember, if it weren't for Patel, you, myself, and the rest of the country would still not know about the Steele dosea the FBI used to frame Trump.
I'm gonna give him the benefit of the doubt and stick with my personal rule of: never judging a man for a gunfight I wasn't in.
Keep in mind that while all this is going on, he's still trying to clean up the snake pit the FBI has become over the last SEVERAL DECADES.