Some of them occasionally do use groups of parallel lines for shading, but it rarely resembles traditional feathering or hatching. It's often much rougher, with no real finesse for the exact shape made by the groups of lines, and they rarely taper on the ends like feathering. It tends to feel a bit clunky in comparison, raw and modern, sort of like alternative rock compared to carefully orchestrated progressive rock of the 70's. Done with a blunter instrument, and not ashamed of it.
I just saw a Mignola interview in which he said you can't just try to enter comics with thus kind of style - he and everyone else who do it began the usual way - Bill Sienkiewicz started as a Neal Adams clone for instance. Then once you've paid your dues and proven yourself you can relax and start to do your own thing. I believe this serves to ensure that you know how to draw well - I can see people wanting to just ignore traditional technique and jump straight into the modern look without developing the skills these guys have.