No. Just no.
This is a perfect example of people not understanding what was going on.
Specs were not in a good place at the end of Legion. That's like saying a man in leg braces is "walking just fine!". BfA took away those leg braces, and forced the dude to start to try walking again, and people were all "OMG specs suck!!!", and it's like, NO, BfA is actually an improvement, but the leg-braces, i.e. the artifact weapons, have come off, so whilst the dude is walking better than at the beginning of Legion (when the leg braces were still being fitted, in this dreadful metaphor lol), he's still not back to full strength.
We can argue if Azerite, Essences, and Corruption are more leg braces, or maybe just painkillers and steroids to help him through getting better.
I don't mean to be harsh on you. Your experience is real. But the problem was that the artifact weapons were covering up a multitude of sins, not that design suddenly went to shit.
The absolutely did not try to reinvent the wheel with BfA. It's probably the what, the third expansion where they didn't do that, maybe second, depending on how you count it (the previous definite was MoP-WoD, and arguable was Wrath-TBC). They kept and improved on the Legion design, but by taking the braces, they made it obvious how much weight they'd been taking.
@
LordVargK - Yeah I'm much more inclined to buy that the sheer burden of different, complex systems and scaling is having some kind of effect than just more psuedo-RNG. That's more plausible.
Still I personally haven't seen it. And given a ping of 12, and a solid framerate (albeit only a 60Hz monitor), I think I'd notice!
But maybe it's just two decades+ of internetting and MMOing making me not even notice small hitches other, younger players see as very obvious. I dunno. Or maybe Argent Dawn-EU and Turalyon-EU have just been less affected (though I've had AD people claim it's hitting them).