The showrunners said from a very early point that the two would not get together during the shows run, and I get the distinct impression that they actively enjoy trolling shippers. So this is pretty much exactly what I expected, and I’m perfectly happy with it.

(Also, look at Tendi in that last scene, when she gets a scan of Rutherford during a conversation about them being “just friends”. She saw something on that Tricorder which she didn’t expect, and then when Rutherford gets up and has his back turned, she’s clearly checking him out. Draw your own conclusions.)