If you want more detailed information, just write to the Fertigungswerk16 instead of complaining.
It is written to ask questions without hesitation.
As with other manufacturers, not all information (e.g. assembly instructions) is immediately available to everyone digitally.
If you take a closer look at the site, you can see lots of pictures of the kits.
I would like to point out that the Fertigungswerk16 is only a two man show and cannot apply the standards of a Tamiya, Heng Long or Hooben.