I would argue, they should just ditch the LED and include quirkier elements. Why not arcs, pillars, solid material. Not everything has to be reflective and projective bling bling. I still love Lisbon 2018 the most for this reason. This stage was very clever and easy on the eye.
I fully agree with you. I prefer "natural" props - personally, I think that this stage is a huge step into the right direction because you´ve got water, the kinetic sun (which doesn´t really work the way it should be working, though) which bring more "solid material" onto stage and they add a lot - I´m curious to find out how it will be looking on screen.
Also, Switzerland and Lithuania seems to not rely on LED´s at all and even Albania seems to focus on choreography, some steam and lights instead of LED´s projections/animation.
I honestly believe that we will be getting some variety this year, for sure.