It's actually the opposite - The Gensoukyo Chronicle is a guide for dealing with youkai, but it is also a tool to spread fear of youkai. Reimu would be the one to blame for "removing Gensoukyo's fangs", since she's the one who invented the spell card rules.
... these days, even those would just be background investigation on peace-complacent, sniveling youma...?The asshole women of the Hiedas have spent such a long time..."The Gensokyo Chronicles"...I want to create a book to surpass them...!I've always thought about it.It would be a so-called "youma book for humans".Long ago, they were priceless as writings for weak humans to avoid danger, but...What a joke....removing Gensokyo's fangs...That being the case...