Along with padding all the polls, invert the colors so that the majority of the polls are the super brite orange and the grab points are black. Which would make them more easily visable to kids walking near it while it is in motion.

Those are simple upgrades

The “weakest link” in this design is the pivot joint itself. It’s a good start but needs refinement.
One major refinement for safety/maintaince would be to use 3 braided steel cables (in triangle formation) instead of one. This redundancy would reduce risk of injury if one cable where to snap. Also the underground post mechanism should be much further in order to more properly distribute the stresses induced by the kids at play. All issues of which can be easily resolved by an outsourced engineering firm.

But I doubt this – in its current iteration – would even be legal in Norway, too many ways to kill a kid with this play thing. Not so much the construction itself, as I suppose it will only straighten itself and not bounce back and forth.

The biggest problem is the thin wires and the triangular sheets attached to them. Remove those and add instead something with grips on them, attached to the construction itself. I imagine big oval balls, allowing the player to hold on to them and climb onto and between them while the whole contruction sways back and forth. These oval balls would be soft and double as padding.

Anyway this looks cool, maybe needs to be slightly more dangerous, it looks like it would get boring really fast.

They should seriously bring back the swings for more than one person that when propelled with enough force flipped around its axis… now THAT was fun! Exercise, team work, for a goal that spun your head around.