Steve Thomas's book was helpful for learning about certain aspects of the case that was not public knowledge, but the Patsy bed wetting rage theory seems a little far fetched. Patsy may have been cranky and yes the holidays can be stressful. However the severity of the skull fracture, combined with the decision to stage a kidnapping/murder, would have been incredibly bad luck and terribly poor decision making. Patsy was a smart woman. Patsy was living a comfortable life. Maybe a less thoughtful mother who is having a tough time might viciously injure their child and then make the poor decision of hiding it from her spouse, but Patsy Ramsey doesn't seem that type.
It probably was an accident and then cover up, or murder in fear of jonbenet possibly exposing abuse, or Burke jealousy, but Patsy is no Mike Tyson power puncher. Of course Steve Thomas 100% believed his theory, but he might have tried too hard to theorize the clues/evidence instead of biding his time before constructing his theory. There was incredible pressure for the police to solve this case and Steve Thomas might have tried to connect the dots a little too hard.
From what I have read and seen(websleuths, all the jonbenet books minus Kolar's, tv shows, etc.) the family most likely were involved. John's behavior, Patsy's handwriting, lawyering up, bizarre ransom note, hurrying Burke out of the house, body found in house, the police were absolutely correct to focus there investigation on the Ramsey's. However I just don't know how the police could focus on just one of the three. I personally can't eliminate any of them.