I'm not able to modify your report, because it depends on custom data classes which aren't available in my database, I thought that probably this way below can help to solve your case (Alex Hedley was on right way :)
1. Import attached custom filter "Only Virtual Machines are in this filter.xml" (Console -> Filters)
2. Import attached custom filter "Only Physical machines here excluding virtual machines.xml" (Console -> Filters)
3. Clone your existing report and go to Edit mode, put this query in 'Query" tab (Additional operator marked below)
DECLARE @v1_TrusteeScope nvarchar(MAX)
SET @v1_TrusteeScope = N'{2E1F478A-4986-4223-9D1E-B5920A63AB41},{582029E2-FC5B-4717-8808-B80D6EF0FD67},{AB3A7B62-A109-4DB3-8107-22D28E0C7813},{B760E9A9-E4DB-404C-A93F-AEA51754AA4F}'
SELECT
[vri2_Computer].[Guid] AS [_ItemGuid],
[vri2_Computer].[Name],
[dca4_H_Bitlocker_Status].[BitlockerDriveCEnabled],
[dca3_AeX AC Primary User].[User]
JOIN CollectionMembership cm
ON cm.[ResourceGuid] = _ItemGuid
AND cm.[CollectionGuid] = '%Filter%'
FROM
[vRM_Computer_Item] AS [vri2_Computer]
LEFT OUTER JOIN [Inv_AeX_AC_Primary_User] AS [dca3_AeX AC Primary User]
ON ([vri2_Computer].[Guid] = [dca3_AeX AC Primary User].[_ResourceGuid])
LEFT OUTER JOIN [Inv_H_Bitlocker_Status] AS [dca4_H_Bitlocker_Status]
ON ([vri2_Computer].[Guid] = [dca4_H_Bitlocker_Status].[_ResourceGuid])
WHERE
(
(
([dca4_H_Bitlocker_Status].[BitlockerDriveCEnabled] = 0)
AND
(0 = 0)
)
AND
([vri2_Computer].[Guid] IN (SELECT [ResourceGuid] FROM [ScopeMembership] WHERE [ScopeCollectionGuid] IN (SELECT [ScopeCollectionGuid] FROM dbo.fnGetTrusteeScopeCollections(@v1_TrusteeScope))))
)
4. Now go to "Query Parameters" -> +Add -> create a new parameter with basic GUID and specified there guid 49219ba0-c17f-42ce-99c3-a07463e6252c and set name Filter
5. Go to "Report Parameters" and create there new parameter with type "Basic GUID" and "Value Provider" filter choose parameter control --> specify there this GUID as well 49219ba0-c17f-42ce-99c3-a07463e6252c