Yea, that's what I figured, I created a pull request to update the status of BIP 0010 so future developers don't get confused.
https://github.com/bitcoin/bips/pull/125It would be very nice if the Armory people could release a new BIP explaining how they are handling things now. I think some kind of consistency in the way different applications handle multisig signature distribution would be really nice to have. There are a lot of apps now using multisig, but there is no way for them to communicate with each other.