>>51251020The things that guide talks about show up in other sources, even as early as the original anime. In fact there's nothing in that page that's false. Talking Pokemon are a big rarity in the series and often show up under special circumstances like in the movies which is pointed out in the guide as "special storylines".
Mr. Shudo, who was in charge of the writing of the original anime, mentions how they had to work around not depicting meat products in the anime, a point touched up in that marketing guide, and the film makers of detective pikachu talked about rules the Pokemon Company set in place, including the whole thing about Pokemon not wearing clothes. Even more telling is the section where it talks about how Pokemon replace real animals, Mr. Shudo talks in his blog how he couldn't use flies and mosquitoes as part of a gag for a proposed epiisode because they had not Pokemon equivalent. Indeed the Pokemon universe can have plants, objects and actual spirits but it can't have animals unless there's a Pokemon that functions in a similar way.