I'm much more excited about this new offering: https://aws.amazon.com/qldb/ (Disclaimer: I work at Amazon but not on AWS).

A "cryptographically verified transaction log" seems like a much better alternative for almost all private blockchain use cases I've seen (there aren't many that make sense).

It's cool that AWS offering a productized version of Ethereum for customers who want it, but I imagine once people get past the buzzwords, it makes much more sense to have something centralized, or use a secure public blockchain like Ethereum / Bitcoin for public auditing.