Not everything emits wide events. Maybe you can get the entire application layer like that, but there is also value in logs and metrics emitted from the rest of the infra stack.
To be fair, you could probably store and represent everything as wide events and build visualization tools out of that that can combine everything together, even if they are sourced from something else.
To be fair, you could probably store and represent everything as wide events and build visualization tools out of that that can combine everything together, even if they are sourced from something else.