Patrick:
Using a template, here and there, is a design decision.
Making your whole style based on the templates -- the "Raynor lite" model described by Michael Whitaker, or Raynor's own career -- is another thing entirely. You are no longer trying to get jobs based on your own ability and creativity as a designer. Surely you can see that difference.
To go back to Jud's analogy to music, there are musicians who occasionally do their own take on someone else's song ... and then there are bands that are known as "cover bands" because that's all they do.
Tom, I was going to ask if your full thoughts on minimalism vs templates were written anywhere, but I think you summed it up well above (although, Raynor repeating himself would probably be more like late-era Rolling Stones than a cover band).
On the surface, minimalism and templates would seem like natural opposites, but there are quite a few shades of grey there. Templates are the blues to minimalism's free form jazz. The theory of composition is quite different, but the best examples tend to sample aspects of one another.
Much like the blues, the popularity of templates (and of late-era Rolling Stones) owes much to the power of recognition. Templates provide an opportunity for the golfer to immediately recognize tried and true design tenets and attempt to master their known strategic requirements. And much like free form jazz, minimalist designs require more work from the golfer to discern what strategic decisions are being requested. The former provides a more consistent reaction, while the latter seeks higher highs and risks lower lows.
An oversimplification, of course, but one I feel justified in making as I am equally fascinated by both schools.