You may be referring to a different moment I didn't see, but I noticed when Murray had his feet outside the trapezoid area, but the puck was within the trapezoid. This is allowed as the puck is the determining factor for playing it outside the trapezoid, not his body.
http://www.nhlofficials.com/es3519/cat127/rule-situation-of-the-week-series-goalkeepers-restricted-area