Sorry, but I'll have to disagree with this. Yes, the lighting does affect a lot of the overall character, but as people already stated: Some WoLs do look completely different regardless of lighting, simultaneous contrast etc. They probably did have to fill in the blanks of the missing information, but you can do so without losing this much fidelity to the original character. As someone who had to repeatedly upscale different types of images or graphics, it is possible, especially if you take a step back and look at the overall perceived shapes. Imagine doing this for upscaling / modernising the same company logo and losing a big chunk of (brand) recognition – you can't just ignore that, you should go back to the drawing board and try again. You can't just zoom in and fill in the blanks without looking at it from a bit further away / different perspective – you won't be able to see those clearly visible differences in general perception otherwise. Although those changes may seem objective, there must be something to it with this many people pointing out that there is something off. I feel like it might be a bit unfair to dismiss those emotions / opinions on the changes just because they are not able to word / explain it. And yes, if SE doesn't change anything and we want to continue playing, we will have to tolerate it – it's not the same as "getting over it" though.
Here are some examples, I tried as best as I could to show what I mean with "filling in blanks" and thus losing fidelity when it could be rectified (yes, I'm aware it will take time and no, it's not an easy feat):
I'm sure, many of the dissatisfied players wouldn't mind waiting just to see those changes happen. Again, this doesn't mean that the graphic update shouldn't happen at all, most of the changes made do look amazing, where they did a great job with upscaling e.g. gear. But looking at it from an either black or white perspective and whether the update should or should not happen is not really constructive.