Corona SSS/Volumetric, is a GREAT chance to popularize the engine among a TON of new kind of artists, the creature/Character Artists. IMO Adam and Ondra, had to take care with this area. (Of course they know this). But , Otherwise, i am afraid people will see corona "only" as a great ArchViz tool. Wich is good, but i like a lot when i saw non-archviz stuff on Corona. It spreads and open another world of possibilities with it, but people only will believe if we produce good material to SHOW it´s capabilities on this area.
Without having any public release with SSS embed is a huge downside for me. A Lot of friends never touched Corona, only because they are waiting for SSS. Mostly of them are producing images that receives FrontPage on Major CGi Portals from time to time, and had a great work using other renderers (Maxwell, Vray, etc)...
But they are very busy people, never stop, and it´s hard to convince someone to sign a forum, ask for a beta, and wait for aproval, to test something, and then they´ll need more procedures if they wants to put it on a Farm (Activations, etc...) Sometimes the beta activation mail takes some time to come for some.
So, i think, that even not being such a big issue for anyone, to get a chance to test such great tool, it became an extra obstacle for spreading it easily.
Every friend i´ve presented the Corona Renderer,has loved it ! But sometimes it takes some time to convince people. Images works better than words, and without a public beta with SSS, we will have less images floating around... So, the beta Form needs to be more acessible and clear. IMO
This needs to be exposed, more and more, to push people from their Confort-Vray-Zone...(Vray).
If you don´t agree with me, take a look around... There´s some few SSS examples over the forum or internet. Corona is an explosive tool, and i think it needs to take over the Cgi Foruns/groups with good images (Like our first big bang, with A4. ;)