SMH Argo made the rookie mistake of rezzing all of them at once instead of one at a time.
Relatively at the same time, As he has to put the stone in there bodies practicality wise he almost certainly did it one by one in a row, which even if he did it only a minute or two apart it does mean that they didnt immediately go nuts, they also kept speech and intelligence so I would guess they acted normally at least briefly. I would assume he did the first one, saw them wake up and talked briefly, then did the other in excitement, before they then went nuts.
It does feel like they had a moral shift more than anything so they could have passed off as successful for quite a while.