JKM,
I think Tom Doak might answer that question with a definite "YES"
He's employed them spectacularly at Old Macdonald.
I think Dye's work created a positive trend.
But, that doesn't mean that they weren't misused on specific occassions.
You're also forgetting about Pete's reintroduction of pot bunkers and mounds at HH.
Well, having not played Harbor Towne, I am unsure what kind of mounds we are talking about, which was why I did not say anything about them. I would assume we are looking at a form of fairway mounding to add variety to the lies and such rather than containment mounding, which I know most here are against.
I am not sure what I think about pot bunkers though. I think they have become overused in many cases. I know I would consider them overused by Tom Fazio at Pinehurst #4 and even to a certain degree by Mr. Dye himself at PGA Golf Club.
I think when these things have been used right, they turn out very well, but that the 'trend' created by them, same as the 'trend' of island greens, may have turned negative because of overuse and poor use.
And I think that may be the whole problem with trends, either positive or negative, is that they many times even the best original trends become bad once everyone, including the designers with far less skill than the originator, begins to follow them. Then they turn poor.