When I say EV production is slower - I'm saying the ramp up to target capacity has been very slow. Even major OEMs like Nissan & GM have ramped up slower than their own estimates. Also, the start of the delivery date has always slipped. Even though some (like Nissan) made token deliveries on target introduction month.
I was browsing the book "Jolt" yesterday, written in 2010. It lists a bunch of upcoming vehicles - all of them have now got delayed (including S, PIP, Fisker, Coda, BYD, Focus EV). Leaf & Volt ran into ramp up issues, though they managed to get a few units delivered in Dec '10.