I'm assuming it was far too popular because I can see no other reason why the first month offered a set of monsters to fight and a solo monster fight yet this month offers 2 group monsters to fight. What's the point of having 2 tombs with 4 difficulty levels?
The first month the content was aimed at everyone, better geared players could do the more difficult fights for better rewards and everyone else could do the 2nd tomb on a fairly decent difficulty.
This month the "easy 2nd tomb" is 2 monsters, killing one makes the other monster enrage. The taur can use mortal ray and kill you or your pet/trust tank with a pretty good chance of success (cause cursna sucks) and they have party based aggro, so whether you hit the other or not it's going to go and kill your healer.
You really have to make your mind up what you want here, are you offering content for everyone or are you offering content where they have to be carried?
This feels like a bit of a bait and switch.