Haven't seen the last episode but have been impressed with much of the first two. I suppose it's inevitable that some people get overlooked/missed out, but it's always a shame when it happens and doesn't provide a complete picture. I'm happy to say that radio 2's 'England's Still Dreaming' tomorrow at 10pm includes the likes of Crass - along with GBH and The Exploited (who I think I nearly auditioned for many years ago, but that's another story!) and the Oi boys. Interesting thought!
As for not playing old stuff and sticking to the present; I understand the point and try not to overdo it (tho' I still can't stop listening to Coil) but there's a couple of boxes of vinyl I've got that I hadn't heard for decades until I found them on YouTube. These early influences are very important and musn't be forgotten. But one has to face forward.