Sketch 50 made this plugin obsolete.

[Arkkimaagi]

It seems that finally after 3.5 years Sketch developers from Bohemian Coding took notice of this little plugin and implemented the feature quite like how I've implemented it. By using Cmd+4 to zoom to the parent artboard of an selected layer.

I will still keep this plugin here to support older Sketch versions, but I will most likely not update it further as now we have the same functionality that I wanted back in September 2014.