I want to read some follow-up report 20-30 years from now. For every "Trainer is a huge hit" there is another "Trainer has been a disaster" counterpoint. Which press release should we believe?

Not that my opinion matters one whit, but if NOTHING ELSE, Trainer was actually an attempt by an airline to proactively address fuel costs and supply rather than just say (in perpetuity) "Gee we sure hope oil stays inexpensive."