You are fundamentally misunderstanding how Soccer Ranking works. What you are describing would apply to points based or bonus type rating/ranking, with GotSport Rankings as the best example. If you're ranking teams by how many points they win, and different leagues, tournaments, or other competitions all have different point ratings - it makes sense that they are essentially power rating the different competitions when they choose how many points to award. And as I think most can see - this method does not work, at all, at least as implemented by GotSport. Terrible teams are rated highly because they do well in nothing tournaments that somehow all have high point values, awesome teams are rated as bottom-dwellers because for whatever reason they don't appear often in GotSport-ranked tournaments.
But SR doesn't rank any tournaments, or compare them against eachother in any way. All that matter is how this team entity did when they competed against this other team entity. That is essentially it. Whether they were in the same league, different league, tournament, playoff, whatever - all of it is "rated" the same as a game. The results of these games are all that goes into adjusting the rating. All that is necessary is the ability to determine what represents a team entity, and as long as you have that, the rest falls into place.
Your predictions don't make sense in this context.