Wolfram's theories are still largely pseudoscientific, in that way they look a lot like string theory, minus the public funding the latter received.

Neither theory is really falsifiable : if new experiments are made that contradict the theory, it can just be adjusted to fit the new observations. As a consequence, those theories are unable to make any kind of prediction about our reality, which makes them pretty much useless. No wonder this "research" was never published in any physics journal.