I suspect this is partially because internal efforts and agendas take priority over open source community at this point.
For example, I created an issue requesting a flamegraph visualization in grafana[1] and now it makes sense that they didn't initially respond because they were building it internally in secret and didn't want to spoil the big reveal (when they did respond they did mention that it was a secret).
They're also less incentivized now to tend to issues and PRs that help others outside of their ecosystem (i.e. competing logs, metrics, tracing, profiling, etc products).