That’s pretty much just how it worked out, and I gave a date range that reflected what was on each mix, rather than giving a generic “1980 forward” range (the ranges are slightly different on each mix). XTC’s “Travels in Nihilon” (1980) was one of my last cuts, as was Eyeless in Gaza’s “Letters to She” (1982)—I’m glad you brought them up, actually! They are really good, and their last album, 2006’s Summer Salt was one of my favorites that year (“Where Vivid Bloomed” is among my favorite tracks).
Echo & PIL both makes sense to me in this context—I love the irony of PIL-as-prog-inheritor, too. There has to be someone who could do a more comprehensive stroll through modern bands that self-identify as prog artists, too. I know so few, and honestly, a few that I do know, like Spock’s Beard and Echolyn (both of which are American), do nothing for me.