Russian intelligence hiding bad news entirely from Russian leadership is a long standing tradition.
It's how we get three-day special operations in Ukraine.
Case in point: https://www.nbcnews.com/news/world/ukraine-war-russia-genera...
I think that is a different issue. There’s an incentive to not report problems upwards if there’s a tradition of shooting the messenger.
Yeltsin was purged from the party because he gave a "secret speech" calling for more aggressive economic reforms, and then placed under so much pressure he tried to commit suicide. The tradition of shooting messengers was alive and well in the USSR.