B Can Primordial Black Holes explain Galaxy formations

[wolram]

This paper https://arxiv.org/pdf/1705.06859.pdf says that PBHs were the start of galaxy formations at up to Z=10 what do you think?

In this connection a natural idea may come to one’s mind, that the SMBH are not created in the galactic halos but, vise versa, galaxies are formed around the (primordial) black hole seeds and not the mass of PBH is determined by the mass of the galaxy-host but the type and mass of the galaxy is determined by the original black hole seed. New data reviewed below strongly support this inverted picture.

 

[wolram]

The paper says, the galaxies formed around Seed Black holes, This is the opposite of general thinking , This paper makes more sense to me so why do astrophysicists think the opposite is correct?

 

[rootone]

When you say 'opposite' do you mean the idea that the first matter in the universe became primordial galaxies?,
and then black holes happened later?
I don't think there is any consensus about that.