But then you have the same problem with players having no idea where to find the monster they want because they do not yet know what the monster's "creature type" is. I mean, what is the type of a Displacer Beast? Does every single one of us know off the top of our heads? If not... then we have to do the same thing
@Stalker0 was doing... going to the Index to find the name of the creature and then flipping to the right page.
There is no singular format to organize a reference book like the Monster Manual that is going to please all 100% of the player base. Even if WotC was to publish the book twice in two different formats... completely alphabetical AND by creature type... that
still would find some of us players complaining that we have to spend the extra 15 seconds to check the Index because our preferred method wasn't either of those two formats.
Maybe we just all need to accept the fact that we as a peoples have become so used to 'instant gratification' via the use of technology, that yes... when we don't have a technology to give us what we want in milliseconds, we do in fact have to spend 15 to 30 seconds to find what we want. But that's okay. Looking something up in an Table of Contents or an Index or Glossary is not actually the massive burden we sometimes feel like it is.