FD has proven itself both flexible, and responsive to the players needs. There has always been a interest from FD for an Ironman mode. I don't feel comfortable being an absolutist. I welcome any good reason for improvements to the game. It's just that there hasn't been a strong enough argument that trumps the current point of view, and design.
Ironman Mode, should it ever turn up - would be voluntary self locking into a special mode that is still on the current BGS.
Most of the suggestions made on this topic are far from voluntary and normally end up with human traders being cannon fodder.