A lot of you guys are really clueless about rendering. The video showed the dramatic difference between fake lighting and doing lighting the proper way (which is expensive), and you STILL think because the game doesn't look artistically good to your eyes, the PS5 should be able to render the realistic RT lighting without any performance drops. This is typical of all of you gamers that gauge art direction as technology advancements.
I can fool most of you by using a typical 2D lighting system with baked lightmaps, high res textures and normal maps and throwing in saturated colors with PBR shaders. That would be good enough for you to praise the game as the best graphics ever seen.
The art direction has his technical side, so yes, in some ways art is limited for the technology advancements. We have a recent and cleary example with UE5.
Of course a game is not all pure lighting tech, or any of the other sections you can imagine, is a combination of all.
By the way, Ps5 and Series X are perfectly capable to run RT lighting at 60 fps.