Eh... Multi quote don't work properly so I lost all quotes that I reply. >_>
Anyway... Idk how you lose dps with event weapon when you compare it to aransu 3 - I have GC7 on main and it increased my dps by around 100~200k. Burning Mausoleum is just fine if you go with someone who can tank - you need around 1.1m dps per player but it can be balanced out by few "higher gear" players. You just need VT gear, event weapon and 1-2 tt gear players to clear it. It's impossible for turtle stage 4 or achievements tho.
True problem is that achievement are class exclusive. Some classes, like wind kfm, can do them with simple mode and some classes like summoner can't do them with almost full gear and event weapon (1 day). I'm missing 1 stage of soul, I have gc7 and nothing else to "max gear" and I can't clear turle stage 4 to get achievement. I'm not going to mention f8 dungeon where you need 2.1m stable dps to do achievement (well... it's pretty much same for turtle).
Other thing is that people keep saying "another event for whales" and so on. When was last "event for whales"? I believe that it was Zaiwei Ruins at october. Yet you say "another".
And last but most importantly... There are 2 parts of event and most profitable part of event is for everyone - you don't rly need anything to do stages 1-3 and easy mode dungeon (idk why 2nd is in "normal mode" tab while it's clearly "hard mode" of 1st one). You can get 4 oils per character with that thing (or over 100 pet packs) during event. I'm not going to do matchs for gems but you can also get gems from there.
Yeah... I don't care about any reward from "whales event" since I don't rly need anything from there. I would like it if they did drop Hongmoon Gem Powders or anything else. I got enough gems to do 2 gilded ones but can't fuse them since I'm not p2w to buy gold to buy powders...
ps.
You complain a lot about "less gold income" but look at it overall. It's cheaper to do aransu 3 now than it was do go from baleful 12 to raven 3 about year ago. You need around 1/5 of gold that you needed to get to aransu 9 stage a year ago. Surely... What a huge pain in the ass to get outdated gear.
pps.
My newest alt - soul fighter - is pretty much what you get past-story (soul from last event, raven 3 is "30g" now) and it can clear stage 3 with 50s remaining until enrage. Skyrift Mystic Badge - from quest. :)