Forceps when not used for either of my c-sections.
They where very gentle getting them out...DD3 was stuck (footling breech, foot in cervix) so they gave me a classical rather than pull her out....once they where out they where handed to the MW while the cord was cut then taken to the table to be worked on (XDH saw not me).
I would think that they would be less inclined then normal to use forceps on such a prem baby.
Their sculls are still so soft and skin is so thin and prone to abrasions.
I think you can be quite confident that your boys where handled with care.