I would say that the name or title is irrelevant.
There are ILS approaches that have "RADAR REQUIRED" emblazoned on the plan view, while having no mention of "radar" in the name.
KLGA ILS OR LOC RWY 04 (IAP) ? FlightAware
And in those cases, radar control
is required, even though the plate/approach is not named, for example, "ILS-
RADAR RWY 4."
So, similarly, in this case, the label "CAS DME required" means - "DME required." Whether the name mentions DME or not....
If "Jeppesen says that the "identification procedure" (the title of the procedure, in this case VOR) determines the necessary equipment...etc etc." - well, Jeppesen is not a legal authority, just a private company. So what they say is at best advisory in nature, not a legal rule.