Yes, that indeed clarifies it very well. The confusion when I was reading was at this point:
The lightest of all supersymmetric partners is often stable (this is the case in general, although exceptions exist), and can thus be a perfect dark matter particle if it has no electric charge.Somehow I thought IT alone decays into dark matter.
But this cleared it up pretty well:
All the other supersymmetric partners being unstable particles (they decay into dark matter)
👍
Ah OK I see the issue and where the confusion came from.
Dark matter is in fact one particle from the full set of supersymmetric partners. It has to be the lightest one, or in other words the only one that can be stable. Any supersymmetric particle can always decay in a lighter supersymmetric particle, which is thus impossible for the lightest state.
Yup, all clear now. Thanks :)