Perhaps the plugin does not work exclusively for you for reasons beyond the author’s control.
You are doing a bad thing, based on a single bad review, blocking a wonderful plugin that more than one person has worked on. The source code is there, open it and see what you have where it doesn’t fit, on https://openweathermap.org / look – they also have bugs, and this is like a data source.
I use the plugin on several sites, it works great and is perfectly customized. Not the author, just the translator and the user.