It is unrelated, but it was a reference to how after the Potomac River mid-air collision, Trump blamed it on DEI before anyone even knew what had happpened and Duffy echoed that claim saying the FAA had been ruined by DEI.

I will never forgive them for responding to a tragedy in that way.

At least this event is just a big disruption and afaik didn't result in any accidents. Therefore I feel entitled to mock them.

I think that is the joke. That's how I took it