Question special

Hello everyone,
Thank to Dr. Phadke for summarizing some of the findings from the article by Jackson et al. regarding influenza vaccine effectiveness. I have a simple question about policies as we begin this discussion.

As highlighted in this article and previous observational studies, there has been low influenza vaccine effectiveness for the past few seasons. CDC estimates that averted illnesses and averted deaths from influenza have not changed over the last 3 years though influenza hospitalizations were higher in 2014-2015. [Rolfes MA, Foppa IM, et al. (]

Can anyone discuss reasons for the CDC, ACIP and AAP's decision to recommend against using LAIV in the US at this point? Or what was different about the low effectiveness in 2013/2014 that did not trigger this recommendation?