Why did Councillor Murdoch vote against his own committee?

At council last week the Environmental Advisory Committee, newly setup by this council earlier this year, came forward with its first recommendation:  a symbolic council motion against the two big pipelines planned for BC: Kinder Morgan and Enbridge. During the debate Councillor Murdoch, who is the council liaison to that committee, noted his discomfort with the motion as it was outside of the immediate jurisdiction of Oak Bay. During the vote, which passed 3-2, he and Councillor Herbert voted against it. Even Councillor Herbert voted for bike lanes on Cedar Hill X Rd despite his long-stated opposition to bike lanes in Oak Bay, likely because he chaired the Community Initiatives Committee that brought the idea forward. So why did Councillor Murdoch vote against his own committee? And more pressingly, what does it mean for future Environmental Advisory Committee recommendations?