Your number seemed very low from my experiences, so I took a look at your link and found this:
"According to recent studies, the difference between student-teacher ratio and average class size in K-3 is 9 or 10 students "
So in reality it's closer to 30 kids per classroom.
It appears you have no idea what 1st, 2nd, and 3rd world means. It is a cold war relic that refers to alignment not development. 1st world: USA, UK, etc, 2nd world: USSR and China, and 3rd world was everyone else that didn't pick a side.
The thing of note here is that this vehicle is half surface and half submersible. There is the top section that is mostly a surfboard with solar panels and a bottom section that hangs down about 7m and has a bunch of wings on it. So the fact that it didn't get torn apart or tangled up is impressive.