Just one extra confirmation from me that nothing changed (as @Andrew and @Lyya pointed out).
Could the difficulty be a result of some of the recent balance changes to some of the legendary troops?
As an aside, regarding luck, I would actually like to run another focus test at some point about the “Perception of Streaks of Luck”, to examine the following question:
Given Player A who just won Game #1, and Player B who just lost Game #1… if they BOTH experience the same amount of luck in Game #2, does Player B believe he was unluckier than Player A?
In other words, does some bad luck, color your perception of the next series of events to make you think you are actually unluckier than you really are?
I suspect it might… but I would love to pull some numbers on that.