>>112844751/12 scale for Pokémon is not a good idea, which is why they don't do it. Let's face it, all the big Pokémon will never have a figure in this scale. This means missing out on a huge number of must-have Pokémon, such as more than 20 boxart legendaries, or Pokémon over 3m long like Gyarados, Steelix and so on. If the big Pokémon were all niche Pokémon that appealed to few people like Dhelmise, this wouldn't be a problem, but that's not the case.
The 1/20 scale is not a dead scale. Not all toys are 1/12. Especially as Scale World is a line that stands on its own. Do you want trainers? You'll find plenty. You want Pokémon? You'll find all sorts, from cute little Pokémon to big legendary ones like Ho-Oh, Groudon or Arceus.
1/20 is just the right balance for this licence: it's not too big, so you can store a lot of Pokémon, and it's not too small.
