I am becoming more and more disillusioned with the prog/tech death metal bands that are putting out albums these days. I know many metal fans are, but it's just something I have been experiencing lately. Those bands put out songs that are full of a lot of different stuff, some of it it even pretty rad, but they string it together in a way that makes it so ineffective. Not that it is all great, but there is enough good stuff that I would say the typical tech death metal band's songs are a case of; the sum of the parts is lesser than the whole.
Now listening to the latest Obscura, Omnivium. Yeah, I listened to Cosmogenesis and decided it wasn't for me, but there are always parts that I like, so I hold out hope that they will learn to construct songs. Alas, no. They may establish a good (not great) riff, but they quickly meander into enough unrelated places, that by the time they reestablish the riff, it has no power, and there is no anticipation for it.
EDIT: ..and I think references to Death and Atheist are way too common in reviews. Those bands knew how to write songs. These bands do not.