Am I allergic to nail polish? Reduce the hype: a rosary "based on" the writings of Maria Valtorta is not automatically a "Private Revelation of Maria Valtorta" as if it were a stable and universal category.
The legitimacy of this rosary remains entirely conditional on institutional authority.
If the Catholic Church restricts access or dissemination of Valtorta's writings, or even issues a negative judgment, the legitimacy of this meditated rosary collapses, proving that this hierarchy is merely a local classification.
What concretely changes if we buy this book? Nothing, the impact on cash flow or execution is nil, it's just a marketing issue.