Some people complaining the new normal raids are near savage difficulty while they've never even done savage before.

Savage is WAAAAYYY harder than what the new normal raids presented, why do you think most people who do savage take up to countless HOURS of practice to finish one level of savage?
You can finish these normal raids in 10-20 minutes depending on whether a wipe happened or not.

Mechs were already "hard" during the first few expansions, I still see a lot of people die in Omega normal raids, Eden normal raids even now.

It seems easier is just because most people already know how to do the mechs, and if the way you played is by mostly following where people go in those raids, and not thinking about WHY they go there, then of course you'll find the new NR, which only released like 2 DAYS, hard to do, because most people are only doing it for the first time or haven't learned the mechs yet, you won't be able to "follow" them.

There's really nothing new in the new NR other then the one that throws you into the air in M1. Every other mech you can basically tell what happens.
For M2 it's literally like Barbaricca.