Depending on the release and the article, I'm not convinced that rewriting or lifting words from a press release is always a bad thing. Is it possible to write a story about the latest Consumer Price Index without it being substantially based on this press release http://www.bls.gov/news.release/pdf/cpi.pdf ? Is it possible to write about a newly announced iPhone without lifting data from Apple PR events or releases?
I would rather have an article that lifts a technical phrase from a press release over one that attempts to reframe or extrapolate from it in a way that is no longer factually correct.