I doubt it matters at this point. In the first fight he couldn't keep it together for two rounds; this time he couldn't keep it together for one full round. It seems likely that he just can't put together a coherent game plan and fight smart against Killashaw; his adolescent grudges bring out his inner Neanderthal and he falls apart. At this point he's also shown it's possible he was from the beginning a UFC gatekeeper at best who happened to have had one night where he rose to occasion and functioned effectively at the best possible time.
He's clearly going to need to work his way up from a way lower rung from here on in. He needs a BW or maybe a FLyW outside the top 5 with no KO power. Sending him to Lineker or Moraes would be likely to send him ona downward spiral he won't be able to get out of. And he needs to seriously reconsider his training camps. The Alpha Males and their uncoordinated, frat brotherhood style and training may have worked at one point, though never enough to keep them from coming up short in title fights, but it clearly doesn't anymore. At this point it's clear Killashaw's fight iq was high enough that he saw a long time ago that there was a ceiling he was never gonna break training with that group.