Direct link to the comment with the new information (apparently it is not possible to keep the URL fragment): https://github.com/microsoft/vsmarketplace/issues/1168#issue...

The gist of it:

The publisher account for Material Theme and Material Theme Icons (Equinusocio) was mistakenly flagged and has now been restored.

Previous discussion here, which is also the reason why I think this resolution is relevant as well: https://news.ycombinator.com/item?id=43178831