Hmm, no. [http://philosophy.lander.edu/logic/ignorance.html http://philosophy.lander.edu/logic/ignorance.html] Had he argued that his points were valid simply

Hmm, no. [http://philosophy.lander.edu/logic/ignorance.html http://philosophy.lander.edu/logic/ignorance.html] Had he argued that his points were valid simply because they hadn't been disproven, then it would have been an argument from ignorance. Just because someone makes an assertion without attaching footnotes does not make it a fallacy.