Pipeyard is underrated ngl
The only time I've seen someone talk about it besides you is a YouTuber saying they almost forgot it existed 😔
It's cool though. Useful too because of how many other regions it connects to (Shoreline, Sky Islands, Industrial, and Subterreanean!). I used it to get to places faster as Saint in my playthtough (which I finished and the ending is holy pepperoni not gonna spoilery)!