I think we can all agree that the devs best focus on the main battles and main tanks instead of small tanks wich where not so common (altough there are some in).
Dont get me wrong I would love to have the panzer 1 I always had a weakness for small crappy tanks and the Panzer 1 - Flammenwerfer would actually be awesome to have
(stil hoping on a Neubaufahrzeug for invasion of norway someday )
Ah but we can always dream