this article has completely omitted the role of Bidzina Ivanishvili

I guess the left are supposed to be fans of Bidzina Ivanishvili now

This is faulty logic. Omission of something is not endorsement.

Apparently it's great news that the left is now aligned with a billionaire

First of all the author of this article does not represent "the left". His views are his own.

Secondly, nothing in the article suggests alignment with this person you mentioned, because as has already been established, said person is not even mentioned in the piece.

You need to work on your reading comprehension skills. You are reading things into this article that it simply does not say.