Agreed, statements like "things look wrong" are way more helpful when they are specific. Without understanding the inner mechanism (just looking at the renders on page 1), a couple of things stand out to me. Anytime there is a single screw going through a bracket that could potentially see a moment (especially in plane normal to the screw), it would be better to use two screws instead of 1, to support that moment. The further apart the screws are, the better. Otherwise the bracket is likely to rotate. Surfaces moving relative to each other (even small displacements such as from thermal expansion or vibration) can wear out, bolt loses preload, falls out, etc.
I'd also be interested in the wind force calculations (what the assumptions were), as it just doesn't look very strong in the extended position. I would try to include the fasteners and the roof in a stress analysis to make sure I hadn't accidentally overlooked the weakest link- want to know what fails first if a 300 pound person tried to do a pull up off the end, or if that same force pushes up.
Environmental, dust, shaker testing seems cost prohibitive for a niche product like this, but I agree that the odds of the first untested prototype being acceptable for final use are zero for something like this. The odds improve with group design review, but still better to do some kind of cheap testing. I have solar panels that tilt towards the sun (much simpler than this and for personal use only) and had to ask myself similar questions
Edit: "There are 6 prototype setups roaming around the continent, until recently under an NDA program."
Appears this is already happening..