I disagree. When Level 4 came out it was a genuine challenge but now (with the attack army boosts that events produce) it is much easier. Many players can whizz through it fighting on auto. I see this as a re-balance.
Don't you see this as an inherent - abuse of the game?
1. Cause everyone to a chase after More Boosts - hopefully by spending huge volumes of Loot.
2. Slowly change game parametrics to compensate for the increased capabilities everyone thinks they now have.
3. Publish the few - very few - changes that can't be hidden away.
4. Continue this process until everybody wises up!
5. You have now been Washed & Rinsed of your Loot - LOL - go for it.
There is another company out there - Not allowed to disclose their name - that I use to place all the time.
This was an every-increasing practice by them that just became so ridiculous that there was no sense playing it anymore.
They would release new Items during an event and immediately after the event was over - the poor pathetics couldn't even give it a month - Use the EXCUSE that they needed to "Re-Balance" the new item.
Of course this tactic was designed to Haul in all the Loot they could lay their hands on!
At least this company isn't at that point - Yet!