I think more of it is indicative of miqo'te traditions than it's indicative of how the miqo'te live now. Although that brings some of the naming conventions into question.
Exactly. Which is why it's going to be disappointing if we get an influx of extremely traditional-tribal Miqo'te if the tribal behavior is more of a thing of the past for them and they simply held on to the naming traditions.
The wording of the lore post suggests to me that this culture is not only in the past but alive and well now. My thought is that there are many miqo'te clans that live on their own apart from the large cities and still follow this lifestyle.
Miqo'te who are adventurers and so have a greater experience of the world, as well as Miqo'te would live in the cities (perhaps for generations), could well have cast off many of these traditions to mix in better with the other races. There are examples of Miqo'te marrying and having monogamous relationships in 1.0.
I'd expect that adventurers as a whole would run the gamut of culture. With some extremely traditional and others completely adjusted to city culture.
