Ah, can't share facebook group posts. Whole plant looks different and there is no way they are synonyms of one another. Georgei and saccatum sure, but souliei is distinct. Good news that Matthias sent his in-vitro material of all 3 types to America for gene-analysis several months ago. We'll know everything in near future.
If I understood correctly these guys just sat inside their office and looked at herbarium specimens and make decision. You need field work.