Space News recently had an article, an interview, which mentioned this topic:
http://www.spacenewsmag.com/feature/ils-and-khrunichev-sharpen-protons-commercial-edge/
“But because of the new dedication to reliability, that anomaly investigation [of the June 9 launch] was turned over to a Russian State commission — much in the same way as would have happened if the launch had been a failure. It’s the same process. That process has taken a little longer than we might have expected originally. But the investigation has been completed. I don’t have the details yet, but it was isolated to a second-stage plumbing attachment. … So overall, the process I is more involved and more detailed than it would have been in the past, and this is because there’s a new dedication to creating a reliable Proton for our customers.”

Although I suspect that these launch delays are not due to changes needed after the June anomaly, it seems to me that they are working to make sure that everything is right, before conducting another launch.

I have long felt that the Russians took a lackadaisical attitude toward safety and reliability, but I now believe that they are at the very least trying to improve in these areas.