One might conclude that temples to th Veirdri'ira would exist only in the Deep and would be exceedingly rare on the surface. She would in fact have a temple in every Deep city but since so few of these are actually represented in game it seems less. Please keep in mind that temples to common gods and goddesses exist in towns and cities even thought they may not have a physical representation in the module.
.. the whereabouts of the PC accessible temple? ..
Would a priestess of Vierdri'ira dirty her hands with the weapon of an orc even if it did have a greater sting to elves?