I'm been concerned about this for a bit, Here is a quote from the new article: It Is the Future You See
http://www.fantasyflightgames.com/en/news/2015/2/19/it-is-the-future-you-see-wave-6/
As we look forward to the introduction of the new Scum and Villainy faction, we X-Wing players face an unusual situation. The sheer number of pilots and upgrades presents a dizzying array of options, and it’s hard to know where to start building squads for the new metagame.
I guess that's my point. While most of the rules are straight forward. Slowly we are adding complication with things like nested triggers and upgrades just to name one.
A casual (not a one time) play might never know ever decent combinations without 'net decking'. Without a book of squads it could take as long to build a squad as it does to play. You can no longer just grab a ship and it's card. The A-Wing and soon the TIE Advanced will always take/need an upgrade to be "balanced". The default build is ever more complex.
When you add the sheer number of upgrades on the table per ship now you have more to remember than ever before and that's if you knew what to take.
And... many are still hoping for yet more tweaks and 'so-called' fixes to balance everything.