It would seem quite simple for you to take the text of RFC-2434,
edit the text appropriately to pick a more clear and accurate
term, then run it past the community for BCP.
Sure, this is easy. The harder part is that there are many many RFCs
that use the "IETF Consensus" terminology in their IANA considerations
(e.g., the documents that sparked the original thread). I suspect that
the confusion will remain as long as folks read those RFCs and just
assume they know what the term is supposed to mean. But I agree it
makes sense to update the document for future usage.
Thomas