Yeah, I am always aware of that. Djinn builds as he pleases.
And you are right about the crit, which is my biggest trepidation. Honestly, it feels like crit needs another package sometimes (which probably isn't really the case, but the fact that you basically buy one item for both of the AD multipliers seems... convenient yet odd.) That said, although I find zeal at minimum to be what ties together his E buff in terms of attacks needed to keep it up, I do wonder if PD is overkill on that end.
I probably will just give it a spin sometime. And after that I'll troll with tanky ad build.