Could it be... is Kreisberg actually showing some evidence of having read or even heard of Mike Grell's GREEN ARROW?
I thought it was clear that the only GA/BC Kreisberg has read was by Grell, which is why his Dinah comes off as ridiculous incompetent (Grell's BC wasn't particularly strong either.) The proper solution is kidnap Kreisberg for a week and force him to read one hundred issues of Birds of Prey in a row.
(That still won't solve his "insanity gives +10 to planning, +10 to fighting ability" problem with Cupid/Joker, but it might make him write both his leads in character.)