If he did say that, I'm not sure Evan still takes that position. At least the last time I saw him talk about it (at SPLASH), he didn't put Rx in the FRP bucket. I know Erik (the creator of Rx) definitely wouldn't put Rx in the FRP bucket. And Conal (the creator of FRP along with Hudak) would only begrudgingly except Elm as FRP.

(sorry, I can't see the video in China).