I don't agree with that at all. I believe it was scripted one way and then an emotional religious chief of law enforcement changed his mind at the last minute. He refused to fully commit to the younger sketch, then veered dramatically away in a wandering disjointed presentation. FBI and other higher ups must have been going absolutely nuts behind the scenes. But they have to bite their lip and try to maintain a straight face.
Tightly scripted press conferences don't require multiple points of clarification in subsequent days, both in person and in print. Heck, the points of clarification are every bit as numerous as the original points:
Delphi Homicide task force clarifies their reason for issuing a new sketch in murder case
It is hellish to dent an initial impression. That's what played in Delphi. Followers of this case along with media talking heads anticipated that presser for 4 days. Once it was so bizarre everyone assumed it must have been scripted that way. Media panel shows emphasized that angle. But those observers lacked the key variable, the accompanying press release that featured the intended centerpiece remarks, "We have a witness. You made mistakes."
Those panel shows needed someone like Alexis McAdams, who is the sharpest reporter ever to cover this case, IMO. She would have spotlighted that press release and focused attention to the severe variance from what Doug Carter said in relation to what he was supposed to say. And if it plays out that way, the entire impressions and memories of April 2019 appropriately shift.
I have never understood the theory that Delphi knows who it is, or that the killer was in that room. Those interpretations rely on stylistic approach of one guy...Doug Carter. Meanwhile imagine if Robert Ives had been chosen to lead that presser. He would have stuck to script. He would be matter of factly answering questions...no, we've never had a suspect who was more likely than not.
I realize Ives was gone at that point. Many will assert they didn't know who it was when Ives left, but figured it out during the shift to the new direction. That's a low percentage adjustment and rationalization. It would require Ives never being informed. Small town forces have low manpower and need all valued minds to contribute.