It's a bad idea. That unit's [1] task is to provide transportation to senior government officials and security forces around the capital, including to and from that airport. If they didn't train to operate there, then their first time doing so would be with someone like the Secretary of Defense onboard or during some other mission that's critical to national security.
"Training" here also doesn't imply some 21 year-old flight school student learning to fly. The aviators assigned to that unit are typically more senior people who've already done a tour or two with more conventional units.
I've lost count of how many times I've heard your sentiment already today, and I'm distraught by the general public's apparent lack of understanding about how things work.
The missions are flown through that airspace multiple times per day, and it's all for national security purposes. You can't put a hold on all commercial air traffic every time, and you need to train the pilots to navigate and communicate through that particular airspace.
Whether the system (i.e. separating rotary-wing and fixed-wing traffic there) can be more safely designed is a question for the FAA. The military aircraft are simply abiding by FAA rules for that airspace. Many more civilian helicopters are doing the same thing.
"Training" here also doesn't imply some 21 year-old flight school student learning to fly. The aviators assigned to that unit are typically more senior people who've already done a tour or two with more conventional units.
I've lost count of how many times I've heard your sentiment already today, and I'm distraught by the general public's apparent lack of understanding about how things work.
[1] https://jtfncr.mdw.army.mil/TAAB/