CORNBRINGER
I can't call this a lazy development as it works for the history right now, the parents weren't that important in the 2 chapters the dad was completely non-existent and the mother was a link to the doctor, a doctor that only role in the history was to show us the reader the MC reiatsu. So i feel the history is moving forwards using all resources it has at hand good work author. This even open the possibility of meeting Erza even before Fairy tail.