I follow why you are thinking that. Is it because Dixon apparently said that the mag rack was where the PT says it was? In other words, that he said it was never moved by the police? I say "apparently" because to be honest I did not watch all of his testimony. I tried, but I just could not stand to listen to him after a fairly short period of time so I walked away from the computer.
In any event, just because Dixon did not try to explain the DT version that the mag rack was moved does not mean that his version is the DT's version. He had been a very busy bee all the way up to his taking the witness stand, and apparently he was not informed that this was an issue for the DT, or perhaps he could not support their version using scientific instruments, like his eyes. LOL!
Watch for the witness that examined the hundreds or thousands of photos to push this issue that the magazine rack was moved, s/he will be along shortly.
If it was not an issue, OP would not make the accusation and have to struggle to tailor anything about it. He has been coached for many months on what is important and what is not. His arguing that the police moved the magazine rack and placed it in the blood pool is obviously one of the important things, and I can see why.