:::"... the current wording is ... not attributed to Craig ... ." Not a problem - it's not in quotes so it shouldn't be his wording - it should be original wording.  " ... the current wording is completely unsourced ..." again, see above.  HOWEVER, if you would instead say that it is supported only by primary sources and that Wikipedia articles should be sourced using secondary reliable sources, not the subject's own video, then I would agree with that.