> Many state of the art galaxy formation simulations use MHD...

> Generally [MOND] forms structure more quickly than standard cosmology.

Magnetohydrodynamics, not just hydrodynamics. It would need some type of restoring force similar to how the black hole simulation was found to behave when it included magnetic fields.

> People have run simulations with the more basic MOND models, to find it cannot form realistic structure.

Neither does ΛCDM though, right? It matches the CMB, sure, but it doesn't match the many of the observed properties of the universe either. The observed voids and over-densities are significantly larger than predicted, nor is the observed distribution of dark matter in galaxies what we predict.

> And note they have replaced invisible matter with an invisible matter-like field, it's not a simplification.

Great point, and I'm happy to admit I missed this.

But I'm not actually a proponent of MOND, nor even an opponent of ΛCDM. It's the best we got. I just feel it's not quite as accepted as current consensus seems to, so I'm glad there's people out here still trying to poke holes in it and find alternatives.