The content isn't difficult, however I did have difficulties with some of the content.

Isn't this pretty normal to do when translating though? I feel like a lot of books change names when they're too difficult to parse in the other language. For a super fast example of what I mean: Donald Duck isn't named Donald in other countries. His three nephews names are different as well.
Obviously if the translator didn't do it, then that's probably for a very good reason and doing bulk replaces are bound to mess things up, but the act itself seems relatively normal to me?