No, this was not the conclusion of the Bullet Cluster observation.
In the Bullet Cluster, the dark matter and the clumped baryonic matter (like stars, planets, and putative MACHOs) both pass through the collision, unaffected. (For the dark matter, it's because it's non-interacting. For the clumped baryonic matter, it's because there are no long-range forces and it's vanishingly rare for two stars or planets to hit each other.) It is only the plasma (which is baryonic but not clumped) that is slowed down by the collision, due to the long-range electromagnetic forces between charged particles. Since the plasma constituted the bulk of the baryonic matter in the collision by mass, outweighing the stars, this observation is thought to rule out theories that explain missing mass by modifying gravity at long distances (though this interpretation is disputed). The Bullet Cluster is not evidence against MACHOs because they would have followed the exact same trajectory as non-baryonic dark matter.
From the abstract:
> Due to the collision of two clusters, the dissipationless stellar component and the fluid-like X-ray emitting plasma are spatially segregated....we create gravitational lensing maps which show that the gravitational potential does not trace the plasma distribution, the dominant baryonic mass
component, but rather approximately traces the distribution of galaxies. [A] spatial offset of the center of the total mass from the center of the baryonic mass peaks cannot be explained with an alteration of the gravitational force law, and thus proves that the majority of the matter in
the system is unseen.
MACHOs are generally taken to be ruled out by gravitational microlensing results, not the gravitational (macro)lensing seen in the Bullet Cluster.
https://en.wikipedia.org/wiki/Massive_compact_halo_object