Do you know how your CPU works? Or all the networking hardware in the middle of you loading this page? There are 1000s of layers when it comes to computing that it’s impossible to be transparent with them all.

And quite frankly, that end functionality is what customers are paying for, so that they don’t have to care about all the technical details and operational overhead. It's not like open-source Postgres is being halted by this. The Citus extension itself is open-source too.