Don't quote me on this, but I think Chris's route was canceled after the dev felt it didn't make sense for his character anymore and people voted for Kane to get a route instead.
It is the case, you can look through their patreon posts if you want to see for yourself. the dev wasn't confident on if a Chris route would work with how his character had developed and held a poll there to see whether the community preferred Chris or Kane for a route and Kane won by a large margin