These aren't necessary characteristics of a fly-by-wire system, but its mere existence opens up the design space for them to exist.

Of course, I'm not arguing for removing the fly-by-wire system altogether ;)

However, whenever such fundamental paradigms are changed, great care must be taken to understand exactly how the new one differs from the old one.

In this case, the old direct input system afforded perfect communication of its state by default, but the new fly-by-wire system didn't. Care should have been taken to fully replicate the old behavior in the new system.