CK!DL goes by entire games rather than the old DL roster. Primarily because going through to bring that up to date, and doing rankings on new games as they are added, would be a mass increase in workload I just don't care enough to do. Though also because, 90% of the time, the original ranking criteria aren't really meaningful for this format, and the remainder should be exceptional enough to be weeded out individually.
So yeah. Wild ARMs 4 is ranked, and thus any dueller from Wild ARMs 4 is also considered ranked.