Yeah match making is so broken right now I think this would be an issue without boosts.
Like the above post states… higher level teams that should be a natural road block are passed over in match making because they are deemed to high a level… as more lower level teams break 5k it will get worse.
This is going to create 2 top brackets… 1 that includes the level 27-30 teams and 1 that requires everything else. As the 27-29 get pushed down the ladder by the 30 teams lower level teams are taken their spots but those teams dont have to fight the 27-30 teams till something like 6k… meanwhile those lower high levels can be beaten all the way down to 4299.
Ludia literally found a way to make their old match making system worse for certain teams.
At the very least it should take win-loss ratings into some consideration or boosts for that matter but the only thing this algorithm seems to care about is match even levels.