People build in languages they are comfortable with. Golang is fairly easy to ship with and the performance is fine for something like this. Seems like a good tool for the job
I was more pointing out the fact that people reinvent existing stuff in a new language, then a few years go by, the 'existing stuff' is still 'existing', the 'new language reinvention' is dead, and someone new then reinvents the 'existing stuff' in some new language :)
