and at the moment I see no compelling reason not to offer said notice.
Other than the demonstrated fact that they don't know what day they're going to run them? Thats kind of important.
At least in this case, though, I suspect that there was very much a "we'll send them out when we can" attitude. At least three of the PPCs were in working order two weekends ago (two for the final run and one for the second-to-last run), so making sure they had one working (out of four) for a single run (with an eye towards loading the others onto the train)
shouldn't be a stretch. I think it goes without saying that all else being equal, deadhead moves like this are
very much a "we'll get to it when we get to it" thing. I do consider it a given that at least one of the moves would necessarily have been an unannounced deadhead given the reliability issues, but putting together and pitching at least one of these trips as an "excursion" would seem to be no more of a chore than moving a rack of Horizons to the east coast for a leaf peeper trip. The odds of one car being bad-ordered may approach 100%, but the odds of three of the four (one already being at Beech Grove) being bad-ordered at the same time seem to be relatively low. FWIW I think you could realistically have done this twice (one PPC on each run) before the risk of a bad-order blowup would have become high enough to not want to try it.
Edit: This does come back around to the point that has been circulating, namely that a "farewell to the PPC" tour, using 2-3 of the cars over the course of the season,
should have been able to generate some net revenue (heck, sell PPC access tickets under some sort of "train XX03" label on Arrow if you want to demonstrate incremental revenue even if it should be painfully obvious if a random weekend suddenly sells a slug of additional tickets...30 tickets at $50 each, not a stretch IMHO,
ought to pay for the attendant on the outbound run plus getting them back to LAX, and that's presuming they sold $0 in drinks), but in this particular case it's a move that has to happen regardless and something that, with some notice and
de facto having 2-3 spares in LA, should be at
least as manageable as your "average" PV tour with 2-4 weeks' notice.