The framing in this post is really weird. Automated evals can be much more informative than unit tests because the results can be much more fine grained. A/B testing in production is not suitable for determining whether all of one's internal experiments are successful or not.

I don't doubt that Raindrop's product is worthwhile to model vendors, but the post seems like its audience is C suite folks who have no clue how anything works. Do their most important customers even have any of these?