It's not entirely impossible for someone to spend their entire time in the library, especially if every single book is an actual, readable book and not just a few pages of lore excerpts.
And in the end, they're just arguing about semantics- the point of language is to be able to communicate and as long as the other party understands then there really shouldn't have been a problem, but these cunts think they own the English language and everyone else should adhere to their rules.