Why didn't the movie studio make a real Pokemon movie based on the original cartoon?

Sometimes life doesnt make sense to me.. :( I had this question for some time now.. So the movie “Detective Pikatchu” based on a weird made up story : ” In a world where people collect Pokémon to do battle, a boy comes across an intelligent talking Pikachu who seeks to be a detective.” * https://www.imdb.com/title/tt5884052/?ref_=nv_sr_2?ref_=nv_sr_2

I am not a huge Pokemon fan but I think that this is totally blasphemous to the hardcore Pokemon fan base.
Why didnt they just follow the original base story of the cartoon with all the original characters (and have it directed by someone thats actually reputable like Peter Jackson).
This whole thing reminds me of yet another repeated blasphemy and that is “Spider-Man: Into the Spider-Verse” which i will never ever watch.