This episode was pretty slow, particularly in comparison to the combat-heavy episodes.
The pace was not accelerated when the writers felt the need to remind us of Erza’s angst-laden backstory.
Actually, this reminder was necessary, because I have seen every episode and I can’t keep track of the ensemble cast. Casual watchers will remember even less than I do.
All the same, Erza looks like a better candidate for a main character than Natsu. I suppose Natsu is a good depiction of the ideal self-image of the boy who buys the manga, and Erza is an attempt to write a dramatic character with serious emotions and relationships.