This is true that Essentia postponed mainnet release for indefinite term (probably for 1st quarter of 2019, but this is not exactly).

I read this in telegram...
Seems now everyone dissappointed in this project which have only false promised. They promised top 5 exchange during ICO, now they postponed mainnet.. The team looks like very unprofessional

You read it, but who wrote it. Maybe it's just a throw.
I will wait for the official announcement from the team.