Aside from the concurrent testing, Babel with async functions built-ins is our second biggest "bullet point", so even if you were right it's too late. AVA is op

Aside from the concurrent testing, Babel with async functions built-ins is our second biggest "bullet point", so even if you were right it's too late. AVA is opinionated and I think the benefits (from what people have told us) gained from using the latest syntax with no Babel config are worth the Babel bottleneck—which isn't that bad.