while EventLogging data gets stored in a different,
Not really, This has changed quite a bit as of the last two quarters.
Eventlogging data as of recent gets preprocessed and refined similar to how
webrequest data is preprocessed and refined. You can have a dashboard on
top of some eventlogging schemas on superset in the same way you have a
dashboard that displays pageview data on superset.
See dashboards on superset (user required).
And (again, user required) EL data on druid, this very same data we are
talking about, page previews:
I was going to make the point that #2 already has a
established whereas #1 doesn't.
This is incorrect, we mark as "preview" data that we want to exclude from
Naming is unfortunate but previews are really "preloads" as in requests we
make (and cache locally) and maybe shown to users or not.
But again, tracking of events is better done on an event based system and
EL is such a system.