Interestingly we don't seem to have any photos of the wing bottom surface damage, although the 'green' diagram shows 2 penetrations 'c' and 'd'.
All along the bottom of the wing (mostly inboard) would be shrapnel damage from the smaller bits (blades etc.) some of which would make holes but very few actually pass through the skin. These would likey extend to the belly (not pressurized) skin of the aircraft and that skin being thinner might have several through holes from the small bits.
I'm awaiting the report from the investigators (not from non-experts) that describe system damage from all the bits and not just the nicks and tears.
I would expect that the (3)? disk pieces would be the most significant, but certainly some lessons are to be learned here.
Taken together it is the both the minimization of the disk failure in combination with the minimization of the sytem damage within the crew's ability to handle the ATB that provides the passengers with their safety.
Repair costs are not very news worthy