EVA field: file entities filtered by taxonomy term of attaching node
I have a similar case of two Content types that share the same Taxonomy vocabulary referenced, and the need to show all nodes of Content type B that are tagged with a certain term to show on the node type A that is also tagged with the same term. 

I created EVA views display that lists nodes of type B, under Bundles chose Content type A, under Arguments chose token (Use tokens from the entity the view is attached to) and chose 

[node:field-myvocabulary:tid]


for token replacement (I selected it from the list below the textfield). 

Then under Contextual filters I added 

Content: Has taxonomy term ID


and set it up like this: 

When the filter value is NOT available


Provide default value Taxonomy term ID from URL
Load default filter from term page 
Load default filter from node page, that's good for related taxonomy blocks 
Limit terms by vocabulary (myvocabulary)
Filter to items that share any term


When the filter value IS available or a default is provided


Specify validation criteria 
Taxonomy term:
(myvocabulary)
Filter value type: 
Term ID 
Transform dashes in URL to spaces in term name filter values 
Action to take if filter value does not validate: 
Display "Access denied" (this hasn't been triggered for me)