Using Dimension in Star Join vs Projection

Hello,

I have built a Star Join Model using a Customer Dimension Calc View in Star Join Node. In another Star Join Model, I am using the same Customer Dimension as a Normal Projection node and Joining it with Fact table using Left outer Join.

Ran a query to get just the Customer and all Key figures against both models. The explain plan for both queries was exactly same. The customer dimension view was not accessed unless additional attributes were requested from it.

Need some help in understanding Star Join Concept in above scenario. Why should I use Star Join in this case ?

Thanks,

MM