Aristocrats did not wish to be perceived as interested in commercial profit, which was the province of the commercial class. This stigma of print applied to frivolous or commercial writing, specifically poetry and plays for the public stage. The stigma of print did not affect publication of pious or didactic works, learned translations, or the like. These distinctions and supporting evidence are covered in chapter 12. It's OK if it does not favor Shakespeare, suspect if it does.
Any serious analysis requires a testing of evidence to determine what can be safely concluded.
I do not reject any evidence, favorable or otherwise, left behind by Shakespeare. On the contrary, I accept all of it, including some evidence ignored or edited by traditional biographers. My book describes how I tested the evidence and what I concluded from it. In that process, I reject many of traditional conclusions, and provide reasons for that rejection as well as for my alternatives. That's not applying a double standard.