Not sure if this could have had any effect on the outcome of this, but didn't the head of the FAA resign abruptly like 2 weeks ago because of some power struggle with Elon Mush who was targeting the FAA for cuts under his Dept of Efficiency title?
It seems unlikely (along with the hiring freeze of air traffic controllers) or anything else. It does not appear that what caused this crash was a lack of coordination or communication of air traffic control or the airport in general. The plane and helo were correctly tracked, the helo was properly notified. It looks to be error on the helo pilot's part.
So, from a process review standpoint, the biggest failing is allowing training runs in front of a busy airport.