In effect, you can go down either route. The piggies will adjust eventually to their new life anyway. It mainly depends on what you want to get out of them.
I prefer to have my own piggies settling in at their own pace and on their own terms, so I make sure that any new piggies have got their bearings in their new territory before I push the handling aspect in order not to confront a terrifed any new piggies with too many stress factors at once. It is a balancing act of varying interests that gets easier with experience.
However, if you want mainly just a cuddly piggy, then by all means start with regular cuddling session. Keep them short at first and try to find out which are the signs with which your new piggy is telling you that it has had enough - even that may take some courage on the pigy's part, so don't expect communication straight away.
The important thing is that you establish a routine, so new piggies can start making sense of their new world as soon as possible and brace themselves for what is coming. Please be aware that many breeders and rescue people may have a different approach because one has a more human based approach and the other has a more animal based approach.
PS: As this is an open forum, I have deliberately omitted the cuddling option in my informative thread after some long thought in order to give any frightened new piggies time to adjust to their surroundings before being handled or even groped by eager younger children, as that could occasionally lead to biting incidents from terrified piggies on overload and may open a completely new can of worms.