Don’t the refined products have to be shipped from the refinery in Texas where they plan to pipe the crude?
A refinery separates crude oil into many components, from very heavy to very light. If you don't want to build one pipeline for crude oil then you will have to build ten pipelines for ten different products, some of which cannot be even pumped without some serious heating. Here is a diagram of a refinery:
So it may make sense to build a refinery where its products will be consumed, or from where they can be readily transported.