Bulk API 2.0 - MetadataComponentDependency is not supported.

Hi there, 

I'm working with this beta feature and per 

documentation,  I'm using Bulk API 2.0 to retrieve information stored on MetadataComponentDependency, however, when I run it following Bulk API 2.0 guidance

 I get the following error: 

sObject type 'MetadataComponentDependency' is not supported. 

I can see I'm not the only one :) I can see just below post 

What can I do? Is there any other way to retrieve data? Tooling API has a limitation of 2000 records and due to the high volume my use case has, if I use it, I will hit daily API limit.  Also, as this entry also shows, Tooling has some issues, it does not retrieve Reports and it is suggested to use Bulk API 2.0 but it doesn't work properly. 

Any thoughts? 

Thanks!!