Not disagreeing with you about lighting, but there is a differnce in older games that make RT optional. They use RT as a "ultra high quality" shadows/reflection graphical option. So there's no point of having a high performant, low quality RT option.

This isn't the case with games that require RT. Doom Dark Ages can even run the RT entirely in software, implemented in AMD's Linux drivers: https://youtu.be/R5G2bYiA1hk

So I think it's fine to ignore benchmarks that mention RT, meaning it's basically testing the game at "ultra quality" settings.