Indeed, and one of the reasons is the success of ShareLaTeX means that it takes our team's whole attention to keep up with the growth of ShareLaTeX, and keep investing in feature development to keep up with demand. ShareLaTeX isn't going anywhere.
So that sounds like success (even though it's sad for datajoy users)! You guys tested the waters with 2 products, one has found product-market fit, and now you guys are focusing on growing that one.