I personally believe that the previous update of 4/5 match trait activated traits really hurt certain troops. And what is worse, most of those troops have been considered weak (in bold) even before the update.
The troops affected are:
Ketras the Bull
The Great Maw
Courage (reminded by @jeno)
(Thanks to @Mithran for reminding these)
From which only a few were considered overpowered (in italic), and even those were considered overpowered because their use with trolls and huge clusters they create (activating the trait numerous times), not the troops themselves. (Kraken, Mab speaking.)
Because of that, the core concepts of certain troops vanished from the most part.
… Will we ever see any compensation to these troops, especially those highlighted ones (like Ketras and Plague)?