This is not a valid answer.You asked for a Larian comment "about the difficulty issues".
This is a bug.No, it isn't, though the effect may not have been entirely intended.
From
Divine Divinity II : DKSWe'll take the comments regarding certain items feeling overpowered into account with the next update of the game. It's caused by some enchantments (which are also used by the random generator) being available at lower levels. In the same breath, we'll see if we can add a little extra punch in the hard mode.