There is some psychological advantage. These ideas might make the overland options more acceptable for the population.
Switzerland and other countries have nice looking (and sometimes expensive) sculptures in traffic roundabouts. For transmission lines, it might make sense, even if it is more expensive. Sure, it depends on the price. But it is much, much cheaper than burring the cables: underground transmission lines are roughly 10 times more expensive, due to cooling mainly (and sometimes this would require converting to DC). So there are three options: traditional (cheapest), such designs (more expensive), or hidden (10 times the price of traditional).
No it doesn't make sense. Transmission lines should be a boring as possible so you're eye is not drawn to them. There is no way to make them look beautiful. Good designers try to make them disappear to the extent possible.
Beauty is in the eye of the beholder. Quite a lot of public art is not regarded as beautiful by everyone either and is certainly not regarded as worth paying for by even more people.
It's also cultural. One of the things that struck me when I visited the US (many times over a twenty year period) was how little public art there was compared to most places in Europe.
Yes.
There is some psychological advantage. These ideas might make the overland options more acceptable for the population.
Switzerland and other countries have nice looking (and sometimes expensive) sculptures in traffic roundabouts. For transmission lines, it might make sense, even if it is more expensive. Sure, it depends on the price. But it is much, much cheaper than burring the cables: underground transmission lines are roughly 10 times more expensive, due to cooling mainly (and sometimes this would require converting to DC). So there are three options: traditional (cheapest), such designs (more expensive), or hidden (10 times the price of traditional).