2 reasons to avoid quilted necks.
1) its generally from a softer species than the usual maple used for necks.
2) the grain pattern of quilt can mean very few grain lines make it from one end of the neck to the other. it undulates massively following those pretty waves. If you imagine wood cells/grain alignment in the neck being like the surface of a body of water then straight maple would be a flat pond, flamed would be a rippling sea, quilted would be the perfect storm.