Yes, you can!
When checking the "Select Accounts" drop-down in all products that support Google Display & Video 360, you should now see both the main profiles and the advertiser accounts under them. Simply select them like a normal account to use them directly for the query so that you can pull the data only for the advertisers you want.
Note that as the account fetch for the advertisers is using a sub-query for impressions, it's possible that new advertisers without any ad impressions will not show up in this list. However, once they have at least 1 impression, they will appear in the list.