It was on one of the maps released by GW. You're the one touting their revisionism in 2E.
Likewise, the demons were EXACTLY the same in 1E W40K - the demons, the gods, the lore...
Sorry mate, I'm capable of distinguishing the present tense from the past tense.
The Warhammer world has been set in the 40K universe since release of 40K. They have never been truly separate.
That's the present* tense. You're saying that, right now, the Warhammer world is set in the 40K universe.
* = to be precise the present perfect progressive tense.
That's a straightforward falsehood, as I said.
Saying "REVISIONISM!!!!" like it's some sort of totemic word doesn't change the cold, hard, fact that GW themselves have
explicitly stated that they are separate, and that the Warhammer world does not exist within 40K. I'm not sure what else there is to say. If this was in 2E 40K, as you suggest, that was in 1993. That's 26 years ago, and it means that 40K had only existed for 6 years when the decision was made. So for 26 out of 32 years, they've been separate - but you're claiming, in the present tense, that they aren't. Which is just not true.
Talking of not true, I've heard this "map" claim before - but literally no-one has ever been able to show me a scan or copy of the map. And Google and various people writing about the connections have never been able to find a copy either. So I'm going to say that doesn't actually exist.
As for "The Daemons are the same!!!" etc. well, buddy we've already been over this - GW says the Warp is the link. I'm not sure what you think that proves, given they were very clear.
If your argument is that "Back in the late 1980s, it's possible GW intended 40K to feature the Warhammer fantasy world!", then sure. Yeah. Possibly. But they changed their mind. Complaining about that and calling it "Revisionism!!!" is very silly, because this is Warhammer we're discussing. Everything in Warhammer has been revised countless times.