Yes, we call it RESORB because that is in the filename, but the full name is the POD restituted orbit.
We make urgent response products for earthquakes as soon as we can get the Sentinel-1 SLC images and RESORB files. Rapid products are helpful for responding agencies to know where damage is worst. Displacement maps show how much the land has moved, which can affect roads, pipelines, bridges, flooding, and many other things, so we try to get the information out as fast as possible. Speed is more important than the most accurate maps.
Scientific studies have a slower timeline, so some people wait for the final precise orbits (called POEORB). In most cases, the errors from atmospheric effects are much larger than the difference between the two orbits.