Checking the requirements is a perfectly normal practice, and you do not need support to make the plugin work. It works out of the box, as long as you install what it needs (which is entirely free).
If you took the time to read the “missing requirements” message to the end, you will see that it tells you exactly what is missing, and where to get it (there’s a simple link to click). Without knowing what the message say, I guess that the missing requirement is a shared library, that you can download free of charge from our site.
Don’t be hasty to judge other people’s effort.