I just had a look at the most recent X-wing FAQ.
https://www.fantasyflightgames.com/en/news/2017/3/6/bringing-balance-to-the-force/
And it turns out that 4 popular cards (Palpatine, Manaroo, Defender x7, Zukuss) got errata-nerfed.
Granted, we have a couple of erratas (literally a couple: Most Wanted and Jamming Field) in Armada as well, but we've never seen much in the way of game-balancing by way of errata (possible exception for XI7/AP interaction).
So this got me thinking: will we ever see Armada errata aimed at nerfirng - or boosting - overused/underused cards?
Examples (2 boosts, 2 nerfs) :
Cluster Bombs: Every squad at distance 1 of the original target takes 1 damage.
Engine Techs: Gets exhausted if you overlap something.
Ordnance Experts: Only applies when shooting at ships.
Point-defense Reroute: You can reroll any die, not just crits.
Not saying I agree with these; they are just examples to get a discussion started.
Edited by Green Knight