I played a little of the pilot skirmish thing. I can see it being a fun diversion, but for the most part this is not for me. It feels like half the loadout options are poorly suited or useless in this mode, and you can't do 1/3 of the weapon challenges. It really isn't Titanfall anymore. It could be fun from time to time, but best played after most unlocks achieved.
What I'd like to see is something of a hybrid. A game mode where the battle starts like pilot skirmish and escalates. Basically you just start with no minions and a really long timer on your first titan. Minions start spawning after first titan is earned. Being the best at pilot killing would give you the huge reward of having the first titan out and even with minions everybody else still has to eat through that long first titan timer before they can drop one. (Burn cards that immediately drop a titan not allowed until first titanfall in the match. But cards that reduce timer are allowed.) After the first titan the timers are normal and it's basically just Attrition.