Trapdoor commitments in the SwissPost e-voting shuffle proof

> The implementation of the commitment scheme in the SwissPost-Scytl mixnet uses a trapdoor commitment scheme, which allows anyone who knows the trapdoor values to generate a shuffle proof transcript that passes verification but actually alters votes. This allows undetectable vote manipulation by an authority who implemented or administered a mix server.

I do not understand why this does not get more votes. Maybe because the title was related to cryptography and did not mention the vulnerability.