Sure, they are in different language families. But a chart showing the "top dozen functional-programming languages" should include all languages that were given a separate workshop at the International Conference on Functional Programming (https://icfp22.sigplan.org/): Haskell, ML, OCaml, Scheme, Erlang, miniKanren (the last two are arguably specialised enough that they could be excluded to put more focus on general-purpose languages).
