There used to be events for novelists as well called Writers Camps, where people could enter contests to get their novels into the Premium programme. I can't speak for Tapas as I don't know for sure the reason it was discontinued, but I get the impression that in general the contests were causing more drama than they necessarily provided good content.
But I do agree that there should be more done for novelists on site. We get less of the front page, no social media promotion, and are working with a site algorithm and design that favours how comics work over how novels do. I would really like some events but also working out events that everyone can do that are also fun takes work from the team to try to make the most amount of people happy and so I imagine it's just a bit of a nightmare all round to get them off the ground.