Its Ad Hominem, writ large. He's not "demonstrating issues with very clear concise and simple statments". He's disagreeing with you, and instead of explaining yourself, you're masking insults as if people wouldn't see them.
Having had time to go read this thing, I can now comment on StP. That sentence explicitly says that this process applies to the Erudite, akin to the language broadly used to add random spells to random caster's spell lists("you can add to your repertoire"). There is, broadly speaking in D&D, a stark distinction between "my personal repetoir" and "apart of a general pool". Its the same reason why Arcane Disciple doesn't give Warmage access to Domain spells via Advanced Learning: Because its not actually converted into a proper power by the game rules; its just converted into one 'for that Erudite'.