>>38950950ROM hacks are done by usually a single person with not much coding experience that has to fiddle with very poor tools and work on someone else's compiled code.
Game Freak is a full-fledged game developer studio, with virtually infinite money, supposedly good programmers with experience, great and intuitive development tools, also they can design and implement whatever they want if they know how to do it, because it's their game.
There is no excuse for Game Freak's poor performance when delivering such a simple project as Pokémon.
Some Spanish retards (sorry for redundancy) are making a game that can rival Pokémon in terms of design complexity and features (Temtem). The only thing Temtem lacks is good monster design and sheer number of creatures and moves (a thing Game Freak has been building over 20 years). Temtem has a shitty budget and a very small team yet they can pull it.
Why can't Game Freak do the same?