It also assumes materialisam is true.
This article is also pretty interesting: https://www.frontiersin.org/articles/10.3389/fpsyg.2022.9555...
As it should until we have a better theory we can test.
At least neuroscientists are actually looking at the only physical medium we know of that can hold consciousness. Everyone else is just basically philosophizing, at least until anyone can show some other medium capable of holding consciousness.
By and large, the current scientific assumption is that everything required for consciousness exists within the physics of neurons, rather than, say, epithilial cells on your feet, or magic brainions that haven't been detected yet. Of course this is greatly simplified- a disembodied brain with no body probably can't sustain consciousness, but As far as we can tell, consciousness is an emergent property of brains which is wholly explicable using scientific methods.