We allow for knowledge panels to be claimed. I checked, and yours isn't. This explains more how to do that: https://support.google.com/knowledgepanel/answer/7534902
When a panel is claimed, then when we get feedback about change requests or possible issues, we know they are coming from a verified source and can work better to resolve the issues. This explains more about that process: https://support.google.com/knowledgepanel/answer/7534842
Normally people just don't like the image we show, so we have a mechanism for them to upload a preferred image. That's very easy to use. But in your case, I understand your reasons for not wanting to have an image used at all. I believe if you had filed feedback explaining that, the image would have been removed.
I'll check on this further, but right now, I see that no image is being shown at all. So I suspect that we've gotten the feedback here somehow and taken action to block any image from showing at all. But again, I'll check on this.