If I had hired you to remove a big ass tree just feet from my house, and found out later you were on an internet forum asking people if there was a name for the face cut you improvised as you went along, I would be upset even though the result was perfect. That face cut did nothing for you that an open faced humboldt with a snipe wouldn't have done, probably with more predictable and repeatable results. You were there, you read the tree right, it did exactly as you wanted.
This is coming from my perspective as a guy who hires guys like y'all for stuff like this, as most days I couldn't get myself out of a wet paper bag with a saw. When I hire somebody to take down a tree that could squash part of my house, (or my whole house in that case) I expect that tree to come down in pieces small enough that even if there is a #### up, I am not rebuilding