I know there is a way to get that pesky door block to not show up in NEI. I'll see about making a PR for it here

I've given it a brief look before, but I couldn't find it. Only requirement is it shouldn't have any API integration. Why? Just cause. I can throw a null check into the block onBlockPlacedByPlayer event and just turn it back to air if it's serious enough. Or if you find a nice way to hide it - that works, too.

Nope no API integration