Faults can be detected quite fast and adjustments are easier. No analogue parts with more troublesome checks. The total time to build an R8 is less than to build a R7 even when the R8 is much more complex. The R8 is an excellent example of a complex technique that is shielded from the user by a humane interface. BMW' s also follow this imperative.
Technology can easily build into any product a vast array of additional functionality.
The intelligent use of this function overload is not easy. It takes some conscious designing to support the required level of simplicity without burdening he user. From this perspective the R8 is more modern than the F5. Photography as a cultural act. Leica designers feel the weight of history.