Personally, I wouldn't take it completely at face value since another researcher has a different conclusion. However, I wouldn't totally discount it either since the other researcher could easily be wrong. With an Elias in the county in question I would lean towards it being correct but I wouldn't count out other interpretations, such as Elias being related but not the father.
This is a case where I would document, document, document and have research notes as to why I chose one interpretation over another. Also, I would check every single document (land records, court records, marriages, church records, store records, personal estate records, probate, etc.) in each county in question and all their surrounding counties to find anything else to build the case one way or the other. Researching both the possible fathers might open other interpretations, including that neither one is the father.