These are great web development tools.
We have limited resources and need to be choosy about what we do. Our area is making tools for editing and creating web projects. We still have a lot on the to-do list for improving our web editor tools.
Our side-apps like Snapshots and Theme Converter or add-ons like Interactions all tie into this strategy.
Working on an app like Sizzy would mean taking our limited resources away from our core mission. Perhaps such app would be more successful in the end, who knows… But Pinegrow is successful enough to keep us going and our ideas of what it can become are far from being exhausted.