But you cited only conclusions reached by the article writer, not the reasoning or the evidence. I can't read Korean, so I can't even check whether it was right.These evidence is difficult to disregard.
How did they came to conclusion that 鴨淥 and 鴨綠 are different rivers?
How did they came to conclusion that 鴨綠 is 遼河? Especially when the Liaoshi (遼史) mentions Liao river (遼河) by name on many occasions in its Geography section.