Fist of all, Wikipedia is not official Church policy
Second of all, there is nothing in there that even remotely suggests the information is representative of official church interpretation or synonymous with the Pope's views.
All it means is:
"that a book or other printed work may be published; it is usually only applied for and granted to books on religious topics from a Catholic perspective."
The book is on a religious topic and it is from the perspective of a Catholic scholar
Do you know how many scholars have different views? They are still allowed to get approval to write about them. Anybody employed by the Church needs to get permission to publish.
"Issue: What are the nihil obstat and imprimatur? Do they guarantee that a work will authentically present the teachings of the Church?
Response: In the Catholic Church, certain types of writings need a bishops authorization to be published for use in Catholic instruction. The nihil obstat and imprimatur indicate that a writing has received that authorization. They signify that, in the judgment of the bishop who grants the imprimatur, the work contains nothing contrary to faith and morals. However, the nihil obstat and imprimatur are not an endorsement and do not guarantee that the entire contents of a work are true."
It simply shows a Bishop has given permission for someone to publish something
"The nihil obstat and imprimatur show that a bishop has given authorization for a work to be published"
It has been approved by the Catholic Church.