Part of the culture of "move fast and break things" is that sometimes the things you think are "broken" are going to end up not being included in the final product, or will be better optimised later, once you understand the process better.
It's like spending time developing a sprue-cutting process is going to be wasted when in the next iteration you refine the manufacturing process to no longer leave sprues connecting moulded parts.
It's like spending time developing a sprue-cutting process is going to be wasted when in the next iteration you refine the manufacturing process to no longer leave sprues connecting moulded parts.