It doesn't make sense in the context of a renderer.
With competitions you usually define a goal, style or genre. Then you have tools which you craft towards that goal. People use renderers for different things. ArchViz for instance is only one of them. If you now define a goal, style or genre it excludes a big portion of the tools user base, which dont specilize in that style.
If you make the definition too loose, it becomes a subjective bullshit competition, where you cannot compare works of different styles.
ArchViz competition is being done by evermotion already. One Genre - use which ever tools you want to complete a master piece.
It doesnt exactly work the other way around.
IMO