Customizing Feedback Form when Custom Labels are Managed in SF

The docs suggest the labels for feedback can be edited from Salesforce:

Using Custom Labels with Skuid on Salesforce 
If you’re using Skuid on Salesforce, it’s possible to customize the content of the Feedback form (including headings, labels, and picklists) using the Salesforce Custom Label feature in Skuid. Feedback form labels are titled “Global_Feedback_[label name].”
However, Saleforce indicates that these Custom Labels are managed and I'm unable to edit the values. Is there something I'm missing or another way to accomplish this?

Dear Sam, thank you for bringing this to our attention. This issue is currently under review and we will come back to you.

Hi, Sam, thanks for bringing this to our attention.  We’re researching it now and I’ll get back to you when I have discussed with the the developer.