I can remember driving vehicles that required double declutching for gear changes, using 'heel and toe' to do so when braking ... those days are also long gone - should they be brought back?
The problem is that the FMC manufacturers still believe that the pilot can pick up the bag of bolts when their software fails and seamlessly go from fully automatic back to double declutching. The software is designed so that the more difficult to cope with cases and the 'who would have ever thought that could happen' cases result in the FMC software 'going into alternate mode' and 'you have control'.
The philosophical question that is now faced is 'which way to go now?'. One way most often seen on here is to ensure that flight crews retain their manual flying skills, the art of flying so that the FMC is not an essential for safe flight but an aid for the crew. However, this is not the way that aircraft are now being designed and the FMC (and other avionics) are being designed so that there are less 'otherwise' cases where the crew needs to take over. Indeed, the 787 is claimed to have a defensive approach to the human interface to recover from erroneous crew inputs. The ultimate direction this moves in is the partially crewed or uncrewed aircraft - or full automation.
In human factors terms the pilot has moved already from 'in-the-loop' to 'on-the-loop'. The next step to human 'out-of-the-loop' or autonomous flight is already the case in some military UAS. The direction of development of the future of flying is being decided now; the decision should not be left to accountants.