[SalesForce] Filtering Einstein Analytics dashboard by multiselect picklist value

I want to add an Einstein Analytics dashboard to a custom object which field values do a certain filtering on the data of the dashbord.

The problem I face is that one of the fields is a multiselect picklist which doesn't work with the contains operation of the dashboard filter.

I need something like a has-any operator to use data rows that match with at least one value of the picklist.

This is how my Lightning filter statement looks

{
   'datasets':{
      'getSource':[
         {
            'fields':[
               'Product__c.Brand__c'
            ],
            'filter':{
               'operator':'matches',
               'values':[
                  '$AllowedBrands__c'
               ]
            }
         }
      ]
   }
}

Here is also a video demoing the problem contributed by Peter Lyons: https://youtu.be/pJLoua8nOqw

Or am I running into this documented limitation? If so, when and how will this be fixed?

ADDED LATER:

Just stumbled over a video from TrailheadX where they show how to apply filters using the Analytics Web SDK and they use an IN Filter