"Yes, as far as appearance is concerned, it's the same with cars: compare the bland specimens of today which all look alike and the characters of the 1950s, 1960s and 1970s."
there reason being of course that the current configuration has been proved to be the most cost effective to build, run and maintain
Until there is some technical breakthrough that requires more experimentation we're stuck with the "Boeing" standard I'm afraid
Anyone (such as HondaJet) are taking a hell of a risk departing from the path