We'll use babel for builds. Most development will be happening on modern browsers, so being able to reduce compilation requirements improves your iteration cyc

We'll use babel for builds. Most development will be happening on modern browsers, so being able to reduce compilation requirements improves your iteration cycle and it makes it much easier to debug. Source maps have lots of issues. Compare debugging async/await usage between the compiled and native version. If you're working on a larger project, compilation times start becoming a huge pain. Cutting down on the number of transformations reduces development latency.