Original numbers were 7,4 million for a dead family member and something incredible like 3 million for wounded. Obviously the first issues began with the wounded soldiers — in the first months they were paying everyone, then they've tried to limit it to serious injuries, I believe etc.I looked it up, the 7m figure does seem to be mentioned by a couple of sources. So they're trying everything to avoid it? Could create resentment among their family members.
Anyway, that document would also then indeed somewhat confirm Ukraine's estimated numbers.
But since the official number of losses is classified and there's tons of different bureaucracy surrounding the "special military operation", it's not hard to at least to prolongate the waiting period if not to escape having to pay anything at all. Look at the amount of bodies of Russian soldiers that Ukrainians still store in their freezers (and have they been doing it for months) — if there's no body, a soldier is proclaimed to be MIA so no compensation is needed. There were also reports of army officials/officers somehow tricking the system and taking the compensation money for themselves.
The sinking of Moskva was one of the few cases where the massive fraud with those compensations got exposed since they've refused to admit that Moskva was even participating in the operation, let alone that it was sank by a Ukrainian missile.
It's really simple in the end — you can't build an effective system when the data that it's supposed to be based upon is classified and the government is invested in keeping both the number of losses and the number of compensations as low as possible. As for the resentment among the family members? Yeah. Deaths of their children are also supposed to create such resentment but somehow it still haven't amounted into anything concrete.