It used to play a major role in all our designs, however in the past several years it is no longer a strong requirement for many clients. There are two main reasons for abandoning DFM (reluctantly).
1. 99.9% of most of the manufacturing for the majority of our clients are accomplished overseas. Almost anything that previously thought impossible to manufacture is now possible for various reasons including technology, manpower, and cost of goods. This is a topic in itself.
2. "We" as engineers have typically cursed Industrial designers for designing products that are virtually impossible to manufacture. However its these same ID's that in fact present challenges that normally would not be addressed and therefore in essesnce actually drive innovation. Lets face it, if engineers are not pushed to come up with solutions to complex situations, we would all be living to candlelight.