Maybe we can find consensus by realizing that the basic premise behind all  “sequence stratigraphic” methodologies is actually correlating stratal surfaces and defining surface bounded stratigraphic units.  Thus a methodology of Surface-bounded Stratigraphic (Epi-Stratigraphic) Units, with user-defined flexibility for choosing the type or types of stratal boundaries used to define Members, Formations, and Groups may provide the common ground for the various sequence stratigraphic methodologies to live, prosper, and co-exist under an informal or formal stratigraphic code.
epi: from Epipoles --- Greek for Surface
Finding Consensus
EPI-STRATIGRPHIC UNITS