Good point, they should be on the phone "Mr G how can our developers help you getting this extension approved"
This developer one of the main reasons for many people to use Firefox, especially in this current chrome controversy manifestV2 vs V3
And ironically this uBOL success should be of very interest to Mozilla because if it had gained more success than the main one uBO then it would be one less reason for the company to invest resources into maintaining manifestV2