It's a surprising and very welcome change. Most will benefit.

If you have more than $10M revenue, why on earth would you run the limited open core version of CochroachDB just to save some $1K-$10K (which is about the enterprise license cost). The open core version has limitations you don't want to miss esp. reg. backup and restore, encryption, follower reads. Now all those features are available for free if you're small.