Yes, that's a valid point I overlooked, though I guess it could be explainable by the story, if the inhabitants were particularly low on intelligence or common sense.
My point was that it's very well using those tiles over a gap of maybe 4 or 5 tiles, because they look like boards just balancing on either edge of land, but over a large distance they look far too flimsy.
For your tents you may want to try and hunt down the side-on tents that someone made to give them a bit of variety. I can't tell you where to find them though!