What you define as bloat depends on the system where you expect things to be running on. If we were building a super thin client which probably runs on a low memory device - it's worth saving the bloat on memory and CPU.

Saving dev team time is exponentially rewarding as a product matures. I'd rather say that as the team gets better at saving dev time on testing and platform parity, they can use that to optimize the experience across all platforms simultaneously. Meanwhile, if you are a small startup (like we are), you would have validated your business proposition and have a larger team to take bigger challenges. That's exactly what we have seen in our experience.