The five elements are held together by a feature of the language rather than by anything they have in common: their Sanskrit names all begin with the syllable ma. That is the whole basis of the grouping, and it is a mnemonic device of a kind common in Sanskrit technical literature, where a set is fixed by its initial letters so that it can be carried in memory.
What the five denote is disputed inside the tradition itself, and the dispute is not a modern scholarly overlay. Lineages described as left handed within the Shakta traditions describe them as substances and acts used literally within a restricted rite. Right handed lineages, and much of the later commentarial literature, prescribe substitutions, so that named permitted items stand in for the transgressive ones, or read the five as internal yogic operations with no external referent at all.
The atlas records that the disagreement exists and that it is argued out in the commentaries, without adjudicating it. This is initiatory material belonging to specific lineages, not open practice, and the entry describes the frame at the level published scholarship describes it. No rite is set out here, no substances are identified as required, and nothing on this page constitutes an account of how anything is done.