This reads a bit like a hit piece and it must be born in mind that only one version of events is being presented. But clearly something with scandalous tones went down in the Russian Orthodox Church. Setting aside the more salacious aspects of the story, the ROC appointed someone as a bishop who should not have been.
In general married priests who end up divorced are not allowed to remain in active ministry. That said, I have heard of instances where bishops have exercised oikonomia and allowed it, especially if it was clear that the priest was entirely innocent. But I have never until now heard of a divorced priest being raised to the episcopacy.