There is nothing inherently _difficult_ about either of the DLCs (or the base game for that matter) - the gameplay loop itself is surprisingly simple.
The issue is the feature bloat and overdesigned "systems" which _force_ a certain gameplay style courtesy of Hugo Martin thinking Doom has to be a mash-up of pop-culture.
He said it himself "many players played Doom 2016 _wrong_ and it's painful". That's arrogance and this insistence on "play my way or don't" ruined Doom Eternal and the DLCs for me.
how is the basic gameplay any different then Doom 2016?...all they did was add more onslaught of enemies, bigger arenas to fight and some platforming...does that change the overall gameplay loop or design?...no it's the same...the major difference is that players need to rewire their brain and learn to use the new chainsaw/glory kill/flame belch mechanic...after a little while it'll feel natural and you don't even need to think about it anymore...that's when the game becomes crazy fun
people are using these minor changes as some excuse to hate the game when it's basically the same as every other Doom game...people also hate admitting to themselves that something is too challenging...I love challenging games so maybe that's another reason why I love Eternal so much...