Interesting. What about building a custom pantry/cabinet from next to the fridge, all the way to the back wall, front out flush with the wall cabinet, the side bottom out to that white box thingy, height to the top of the wall cabinet? The pipe would be within it and you gain some pantry space? Add a countertop to the same level to extend the current countertop.

That way the pipe won't have to support anything.