NO, the server-side row model is designed to work with blocks, and that is the minimum unit the grid operates with.
The only alternative for this is to purge the cache for the block that contains the row to be updated.
An example of this can be seen here
The ability to do this is mapped by two complex feature requests in our pipeline, but we don't have a timeline for this.
|Enterprise Row Model||AG-1624||Only re-render the row when the data changes||BACKLOG|
|Enterprise Row Model||AG-1623||Improve the granularity of purging the enterprise row model||BACKLOG|