Hmm well its possible the 00s albums had a little more focus on vinyl versions when released so it might be easier? Or its possible they're going based on popularity/sales, HTDAAB & ATYCLB would be ahead of Pop, Zooropa and NLOTH. Yes Achtung Baby would be their most popular post-80s album, though you can technically get that on Vinyl with the Super Deluxe if people want to spend. They should release it on its own though. Sure it will eventually.
Although since its such a niche market though I really think its random. If they went purely on sales, ATYCLB would be first, not counting Achtung. I wouldn't worry, the rest will be released. Everyone else is doing it, mostly.