Technically correct but and an Indicated resource JORC is...

Technically correct but and an Indicated resource JORC is sufficiently robust to go ahead with mine planning and studies that evaluate the economics of a project. Most resources are reported in the Indicated and Inferred categories with the Measured relevant in the latter stage of development directly prior to mining.
The Deeps indicated mineral resource is not Measured because of lingering uncertainties around Modifying Factors that could change the conversion of Mineral Resources to Ore Reserves. The broken arrow in your diagram represents the relationship between these. But the data presented in the new JORC have been adjusted for modifying factors, they are conservative and completed independently.
As Rox investors we can have a high degree of confidence in the 2021 JORC.