And not to try and troll there, but we should even talk about refund at some point.
I took a bit of a hiatus from the forums and just came back to read this thread.
I completely agree. I will be asking for a refund if split screen isn't given as promised. I've bought multiple copies for the co-op for friends and split screen was a HUGE draw for myself and my partner.
Even the steam page currently promises local co-op.