Richard,
I see exactly your objections to this building - if we can dignify it with the name, having only two walls. A connection system that doesn't match anything, leaves empty slits visible at the corners, looks flimsier that either Steck or System-x, yet uses the horrid yellow connectors to hold the roof on.
The 5759 safari house, by comparison, would make a very nice beach hut or cabin in the woods - a useful multi-purpose building. So nice that as soon as I saw your picture I immediately bought one off eBay!
Back to the awful set, the klickies do have ugly clothing, and surely if you're planning to use a rifle, you need something camouflaged and warm, like a puffa jacket? Which klicky is planning to do the hunting? Then there’s the medical kit; is this to treat the animals they failed to kill with the rifle?
From the presence of a chainsaw I infer that these people are park rangers or forestry workers of some sort, and in a remote location. I'd want more than one bunk and two walls to my cabin if I were one of them.
There was an older Playmobil system used for some Western buildings, which had hinged walls, so you could close them when not playing inside, and open them to access the interior. Is that too much for the modern designers?
I really hate the trapdoor. Playmo seem to put one of these in almost every building – why on earth do they want one in this Treehouse? Aren’t there enough ways to inadvertently exit the building already?