Not if the majority of workers are also hosts . Or if the staff were replaced when the park opened shortly after Arnold ' s death . It ' s clear they use hosts as scientists programmers Bernard and as staff Angela I think this episode ' s revelation was that we can ' t really take anyone ' s humanity for granted . Remember when Logan said to William , ' you ' re trying to work out if he ' s real , aren ' t you ? '? It ' s established in the show that there ' s ambiguity between who ' s a host and who isn ' t which , IMO , is one of the great things about it . It ' s so detailed in the background to make up for this ambiguity , they ' re leaving us a little breadcrumb trail and it ' s perfect . <| sep |> People know how to defend him now . Nonetheless , last season was ridiculous