Wa-Alaykum As Salaam
". So, if a person drinks milk from these para-humans, so are the laws of foster relationship or “Razaat” develops with those. "
This relationship has a number of rulings and conditions, eight of them under the ruling of Syed Sistani, may he live long, before it is met and before the issue of being so that the "suckling child becomes the cause of being Mahram" to the wet nurse. One of these rulings is "that the child sucks milk directly from the breasts of the woman. Hence, if milk is poured into its mouth, it has no consequence.".
So in the case described above, it appears there will be no effect at all with regards to the question raised due to one or more of the conditions not being fulfilled. You can view all the conditions here:
Importantly, and despite what "science" will tell you about tolerance to and safety of such milk products, it should be noted that there are instructions from the narrations as to the best methods to feed a
newborn child. Milk from hybrids are not one of them.
If you have further queries, then please send a hard copy with all the details to the office of Sayyid Sistani.