[Huliwang]

I don't see how it can hit the kid with so much force he die.

The counter weight at the base will lessen the impact and slow the structures fall.

I played basket ball here at there at HDB  Estate...many used a very wide structural base without a counter weight. A person would have tilt the structure by more that 50 degrees for it to tumble over.

Hard to say. That square board behind the basket for the ball to bounce off is a good wind catcher. Noticed strong wind these few days which can even uproot trees........