From what's known, Blenders pipeline will be more like ability to setup project variables that you can later use throughout Blender. Simple pipe on the other hand is interacting not just with Blender but with your entire system. Once Blender's pipeline system is ready, Simple pipe will utilize it's functions to serve as a frontend to whatever we'll have natively.

Nope, not really. The AI was used during the production of Simple Pipe, however it started as a giant road map in Obsidian, then plain python code, then I started to heavily use Serpens, and only recently started doing audit and cleanup using ai tools. So no, it's not another ai-slop 85%+ were done manually hence the reason it took me 2,5 years.