Some thoughts:
It seems to me that, like everything else in photography, deadpan is a tool, to be used when
appropriate as the photographer sees fit. While a 8-pound sledge isn't meant to be subtle like a tacking hammer, they can both do the job more or less effectively. Using one tool for all jobs is probably not a good idea, but people get in ruts, or simply become enamored with a particular tool.
This isn’t necessarily bad, it just gets old after a while. Why can one generally figure out which photographs AA made? Isn't having everything tack-sharp, front-to-back repetitive, thus boring? When a book or movie gets boring, I go find something else to do. Robert Frank was no less influential when photographers became aware of his work. Adams made the Pictorialists look old-fashioned, Frank made Adams look quaint. Things get fixed in time, and we move on- it’s a gradual, continual process.
I'm more impressed with an artist when I see a range of abilities- anyone can throw paint a la Jackson Pollack, I say, paint La Gioconda or Les Demoiselles first, then you have the right in my book to throw paint. So many young artists don't figure this out, thinking 'Hey! I can throw paint too!' Well, no, you can't.
Even, so, some very wonderful music was made by "one-hit-wonder" bands. It's ok to be a one-trick-pony, as long as you do that trick so very well. We don't all have the creativity of the greats- that's what makes them great, but that doesn't detract from our acomplishments, however meager.
And haven't you noticed that music from a given time and place sounds similar? I can instantly tell Big Band from 60's acid rock from Mozart; we are all products of our culture, time and place. There’s nothing wrong with that.
I've seen some painfully beautiful gum prints and platinum prints lately.
So, Deadpan probably is dead, but guess what- in 20 or 30 or 100 years, some young turk will do it again and it'll be the hottest thing down the pike in years. And right now, someone is thinking up something new and startling to astound us all, and it will seem so obvious in ten years.
That's the way it goes.