How does that counter the king having a list of claims and simply selecting the CCs to put up for exe? Potentially, there are about 6 methods to process CCs: in court, by prince, by king exe, by knight CS, by alch yolo, and by inquisitor by night 2.
This change just wouldn’t work. Evil have only just had the chance to share the info they learned at that point. The player might not have even finished transcribing it themselves.
Put another way, they know who is claiming which role, but given they took part in the whispers and submitted a claim, knowing what the claims are won’t keep them from being selected by the king’s CC method, nor can their claim evolve according to who dies when.
Anyone who stalls from whispering would be susp, because it would become obvious they were waiting to find out what info was whisped the king d2/3. We see that now in the current whisper meta: “X didn’t whisper me a claim - vote them up!”