As you remember, Universe wavefunction in dBB is exactly the same as in MWI (this fact is well known as "dBB is MWI in chronic denial"). As unavoidable consequence of MUH is that empty dBB branches are real.
Well the thing is, quite a lot of Bohmians view the pilot wave as nomological instead of ontological.
And as we can see now, "pure WF" doesn't have any structure, so there are definitely no worlds in the empty pilot waves, only the particles will give rise to anything.
This is sort of the point of this paper.
So now we know that: Many Worlds cannot make sense of Born Rule and it can't even get structure out of it's hypothesis.
So the only way to save this (i dont see any reason why you'd want to) would be to postulate some structure and then hope it fits Born Rule and all other observed phenomena.
This would inevitably be way worse than Bohm