[tkislan]

So is there no possibility of getting this skill certified?

I really don't know. I will still try to convince them somehow, or even create some movement from the community, because there is really a lot of people that are still currently using it.
But until that happens, I guess this will be better than nothing.
At least for myself, as I really use it daily.  

 The Plex skill is certified. How is Kodi different? You would have hoped that all of the work the Kodi team does to discourage piracy would count for something, but clearly Amazon want their own private ecosystem. 

Wow, didn't know about that. I will surely contact someone from their team, and ask how the managed to get it certified.
Maybe because it's implemented by their own team. Or maybe because it's a custom skill (but I know that other custom Kodi skill can't get certified either)