people wouldn't have had a problem with it if dt did their own bc&sl tour first. i remember people waiting till they did
Yep. A lot of people weren't willing to pay the same money for less DT plus a couple of bands they didn't really care for. A lot of people took for granted that DT would be back for solo shows, so gave it a miss.
The problem is, DT were the main drawcard to get enough people to see the smaller bands that weren't known. Without DT, you'd either have just a bunch of smaller bands that won't be big enough to get a promoter, or you'd need to have a band big enough that wouldn't need to do this kind of show. And there probably aren't a lot of bands in the genre to choose from that are big enough to carry this kind of show.
IIRC, the PN shows weren't particularly profitable at all. Without DT, nobody would back it, and rightly so.