Palace was 'comfortable' because they allowed it to be, we didn't create many chances IIRC (Ollie's aside), and they nearly executed their gameplan. We've been ok in the league, losing against Newcastle and Liverpool away is fine, but the manner of those defeats was a concern. Chelsea could have gone either way.
Emery is still the best man for the job without any doubt though. We've had loads to contend with this season - we'll be fine.