Yes, in general this event should have been worked on much harder.
It feels like someone from devs, drinking a cup of coffee after lunch, just said:
"Hey, Bruce, today in the evening I am giving you the task to create a new super-quest for all players, so they will be busy doing something for 7-10 days. Your goal is to make them feel like they got the huge new content, and add a new hero there (main lure). But make them wait for it and don't let it finish too fast".
And this guy, who has a family waiting for him in the evening from work, started to write some super-quest program code real fast.
He added random, totally equal neutral creeps with the simplest formations, added 1-2-3-4 stars just leveling same 2-3 mobs, drew some little simple cave, added timers on each regions and told his boss:
"The Super-Dungeon is finished (where is my reward?), I think I will even have time tomorrow, in the morning, to create one super-interesting story line, so we don't only have battles, but also the whole plot. They are gonna enjoy it!".
The guy woke up, wrote some story and put it into the dungeon.
He was also thinking about making it harder, so WARNING: he added SUPER-bosses that are almost impossible to defeat (if you are at castle 1, for example).
"And hey" - he thought - "why do I only place neutral armies on the ground?" - quick passage of hands and keyboard - "I will also add super tasty rewards here and there just waiting players to collect it. Here it is... 3-5 crystals...500 gold...maybe stamina potion? uhh...I will add 2-3, no more, they are too rare... I can also add green and blue items... and I will not make neutrals defend it, let them just stay near ground rewards and "pretend" like they are defending it. Haha I am on strike - players will estimate my sense of humor".
Void - 120, Abyss 495
House: Icarum, Gods of War