My goal was to create an easy to use high performant example for myself, as well as other people to incorporate into their 2D projects.
The current project I was working on had performance issues, I resolved some by converting my targeting system to pure ECS. After I made this change I couldn't believe how amazing the performance was, so I wanted to push things to the limit. My previous pathfinding system was the cause for +70% of the CPU strain, so I was bottlenecked by having too many Agents or too large a Map.
Unity has not shown any love to 2D in the form of navigation, and until that changes I would rather use something that I can quickly adjust at runtime without having to do work-arounds or hacks to make compatible. There are other resources for doing so here: NavMesh+