I mean, a bunch of Volks do look like one another, but the standards are supposed to have a bit of range, since they're the easiest to obtain group and should ideally cover some different tastes. The previous groups of standards looked pretty different... heck, i thought the 2014 girls were too limited in their range compared to the old group bc they had the same aesthetic, but at least you could still tell them apart easily by facial shape and profile. The 2017 girls look like clones.
In comparison the older batches of standards (excepting the first 4 sisters/f01 obviously) had more range. Nobody would confuse Mimi and Elena and Rinon (second to last group of SD13 standards) with one another, or Kun, SD10 Mimi and the SD10 four sisters with one another.