It was Garland's choice, maybe, but I don't think Garland saw it as a choice. He was not going to order a Special Counsel to change his report. He publicly requested that he do so, pointing out the problem, but is not going to order him to do anything with respect to the report.
I don't fail to recognize anything. You don't seem to understand and never have that a Special Counsel is intended to be independent of the Attorney General. Therefore, an Attorney General that respects the intent of the Special Counsel rules is not going to ORDER him to change his report, or unilaterally change the report before its release.
For the 100th time since the Mueller investigation commenced, the ONLY reason for existence and appointment of a Special Counsel is an apparent conflict of interest between the administration, of whom the AG is a cabinet official, and an investigation target. Therefore, they are intended to operate outside the chain of command of the DOJ and free of the direction of the Attorney General.