You're optimizing for the wrong thing. The hard part about this space isn't extracting value from data, it's physically shipping the data through the infrastructure and into the relevant systems. Metrics are so great compared to logs precisely because they're precalculated (read: highly compressed) before leaving the originating service.
Not for many people running such environments. So you either see with very minimal setups without tooling to help (which is survivable at small scales, but inefficient and mindnumbing), or towers of complexity that followed widely shared advice by people always assuming massive scale.
