If you just want to make those neutral feedback moved from "Trusted feedback" to "Untrusted feedback", convince member DT1/DT2 to exclude member who gave you neutral feedback.
That only works if the feedback is incorrect.
But otherwise, you need to convince them to remove the neutral feedback.
Whenever someone complains about feedback, there are usually 2 outcomes: when the complaint is justified, the feedback is removed or the user gets excluded. But when the feedback is deserved, it usually leads to more feedback from others. And that's the case here.