I saw some of Pats tweets Tordel but his earlier works are for me much better; the reason why those have been published. All Slaine/ABC Warrior series so far have been published.
That's the thing, though: what proportion of Pat's work
isn't in (luxury) print? It's not like it's just Horned God and Charley's War. have over 2 feet of bookshelf that's just Pat, and more than half of that is HB - including the
most recent ABC and Sláine, not just the classics. Looking at recent series (as opposed to Finn and mid-period dinosaur stuff) it's just a chunk of Defoe (brilliant) and a lot of Greysuit (awful) missing, for now (and both had early collections that still lurk in comic shop bargain bins and online sales, so whatever my own feelings, seem to lack a market). What other 2000AD author has most of his work appear in HB almost immediately? Not Wagner, Abnett or Rennie.
Funt's graph highlights for me just how much of Sláine is "recent" (ie Rebellion-era) material, and how lavishly it's been reprinted. I suspect an ABC Warriors graph would show the same. Pertinent issues of rights and reprint fees aside fir the moment, I think Pat underestimates how valued his later work is by readers, and thus how well it's treated by the people who make their living by flogging high-end collections.