Where it comes from
Pokemon Co. specifically requested less emphasis on Pokemon battles in Detective Pikachu Nintendo Soup (re-reporting Polygon interview with R. Letterman and B. Samit) · 2019 Open the original ↗
The line in the source
Part of [The Pokémon Company’s] concept for Detective Pikachu was to create a new region, Ryme City, that had a new set of rules.