"Let's recreate the Latency they had back then"

How is that immaterial when it was 100% the cause of it? No latency no leeway.
I don’t necessarily feel it needs to go entirely, but it does need to be tuned reasonably. Same with spell batching.

Yes, cool, have them for the experience. But spell batching on 400ms? When players average what? 40-50? Is ridiculous.
Make it 100-150ms or similar. You get the effects of batching without the jank.
Same with melee leeway. 2-3 yrds? Cool. 5+yrds? Not cool.

With the majority experiencing the same thing in regards to leeway. As you asked before, go check the videos from the day. How many of those were playing on 40ms?
it’s not mine it’s the overwhelming community who feel leeway currently does not reflect a true vanilla experience.

So why do the special snowflakes who had low latency in 2004 whilst more than half the country didn’t have access to cable or weren’t physically located near the servers at that time get more validation than the majority of the population?

So…you are saying that they can make changes that make sense to the game then?
Because modern raid frames look a whole lot weirder to me then being able to melee a character from a reasonable distance instead of feeling like a Hunter with a sword.

I know if I had those two choices to make and could only choose one which I would decide to modify.