Clarification: FOR ME an extended shoulder in unacceptable. So is more than minimal padding.
As for dignified, I refer to what I see as a Pitti freak show. Not to gentlemen who dress well and
conservatively, but have padded and/or extended shoulders. Even if I could afford it, I would
never buy Huntsman. It's my taste.
The term extended shoulder is really more of a continuum rather than a specific look, IMO. I think @A Y mentioned this in the A&S expat thread, but Mahon used to cut his shoulders to the outer edge of the arm, supposedly as he was trained to do so at A&S, but has since brought it in more, cause he finds the "extended shoulder" droops over time. FWIW, my NSM stuff is cut very snug against my shoulder, while my Steeds are cut a bit wider. Vox has had the opposite experience, so who knows if this really means anything.
In any case, while I think it's fine to talk about generalities, it's really the end look that matters. Sometimes an extended shoulder can look quite good, IMO. It's really about the overall silhouette and the wearer than any one feature.
But I also like some of the old Armani stuff, so what do I know ...