Someone is just looking for rationale to justify their *God doesn’t exist* belief and thinks that this is evidence for it.
Where they get the concept that God and multi-universes are mutually exclusive is beyond me.
Heck, the Bible has been talking about other levels of existence for way longer than science has been dreaming up ways to disprove God. But labeling them *heaven* and *hell* just were never very popular with some folks.
All they accomplish is moving the goalpost for the beginning of this universe to prior universes.
At the root, they require real space and time for physical causation. In the absence of space, things cannot exist. In the absence of time, events cannot occur.
And we have seen consistently from cosmic microwave background radiation measurements since the 1960's that there was a beginning of real space and time in this universe.
Bottom line, the universe is finite. Multi-verse theories do not support infinity past, the plentitude argument, anything that can happen did. Ditto for ekpyrotic, cyclic, imaginary time, hesitating, multi-world and other such physical cosmologies.
The only closed cosmology is Tegmark's Level IV universe precisely because it is radical Platonism - that this four dimensional universe is a manifestation of mathematical structures which actually do exist beyond space and time.