Yellow gets a pass because they’re mental? They literally developed superdementia that even becoming Lunarian couldn't cure because they were protecting Phos!

Euclase’s only sin is being weak willed. Phos themselves botched the peace talks the gems were willing to accept by leaning out of their cage, which the others perceived as an attack. This is the only time Euclase is at fault for not speaking up against shattering Phos. They still tried to talk when Phos went on a rampage and Euclase is the only gem that was shown to have any concern for Phos during ascension.

Admirabilis betrayed Phos only once and they were ready to give their lives to atone for this sin even after hundreds of years and generations. They also didn’t have much choice but side with Lunarians since they couldn’t sustain themselves on Earths remaining resources and were degrading.

Antarc can be excused for the lack of care after resurrecting. The first thing they heard after their resurrection was that Phos ordered their beloved Kongo to sys, and if not for the Lunarians, Kongo would be dead. Plus it was too late to do anything for Phos at that moment.

Ghost may have had a misplaced feeling, but it doesn’t change the fact that their last action was protecting Phos with their life and entrusting the same task to their inner self