Death Knight quest - Where Kings Walk (Alliance)

The quest Where Kings Walk (https://wowwiki.fandom.com/wiki/Quest:Where_Kings_Walk) cannot be completed by alliance characters.  When going into Stormwind guards attack the player and the king is surrounded by half a dozen attacking guards.  This appears to only impact the alliance Death Knights.

My character shows a friendly standing with:

• Darnasssus
• Exodar
• Gnomeregan Exiles
• Ironforge
• Stormwind

Here is the character's character_reputation export for the test character:
 

Quote

# guid, faction, standing, flags
'1', '21', '0', '64'
'1', '46', '0', '4'
'1', '47', '0', '273'
'1', '54', '0', '17'
'1', '59', '0', '16'
'1', '67', '0', '14'
'1', '68', '0', '6'
'1', '69', '0', '273'
'1', '70', '0', '2'
'1', '72', '0', '273'
'1', '76', '0', '6'
'1', '81', '0', '6'
'1', '83', '0', '4'
'1', '86', '0', '4'
'1', '87', '0', '2'
'1', '92', '0', '2'
'1', '93', '0', '2'
'1', '169', '0', '12'
'1', '270', '0', '16'
'1', '289', '0', '4'
'1', '349', '0', '0'
'1', '369', '0', '64'
'1', '469', '0', '25'
'1', '470', '0', '64'
'1', '471', '0', '20'
'1', '509', '0', '16'
'1', '510', '0', '2'
'1', '529', '0', '0'
'1', '530', '0', '6'
'1', '549', '0', '4'
'1', '550', '0', '4'
'1', '551', '0', '4'
'1', '569', '0', '4'
'1', '570', '0', '4'
'1', '571', '0', '4'
'1', '574', '0', '4'
'1', '576', '0', '2'
'1', '577', '0', '64'
'1', '589', '0', '0'
'1', '609', '0', '0'
'1', '729', '0', '2'
'1', '730', '0', '16'
'1', '749', '0', '0'
'1', '809', '0', '16'
'1', '889', '0', '6'
'1', '890', '0', '16'
'1', '891', '0', '24'
'1', '892', '0', '14'
'1', '909', '0', '16'
'1', '910', '0', '2'