Hum ...
First of all, Isaac is lying. Better said, he is not telling all that he knows. Remember that Isaac in the other timeline knew who Skellebro ... skeleton belonged to and the author cut him off when he was about to drop the beans? Sure, this Isaac might have not made the connection yet, but he has intel about who Skellebro is ... and for sure he is not sharing.
Second, all that Isaac thinks he knows was force fed to him by "Kevin Ashton" and who knows for what propose Ashton revealed this piece of intel ( true or not ) to Isaac . In other words, he is in the exact same position than Skellebro or worse ( since he has no stats windows ) regarding knowledge of the world real mechanics. I would take his ravings with a grain of salt, because, after all, it is second hand knowledge by his own admission.
Third, I have to agree with Isaac on one thing: there is a heavy veil of dumbness around Skellebro, maybe a little too much to be natural