The 64. IP address on that slide is to Google (obviously), here's the other end:

GeoIP City Edition, Rev 1: PK, 08, Islamabad, N/A, 33.700001, 73.166702, 0, 0

5.157.65.58.in-addr.arpa domain name pointer mbl-65-157-5.dsl.net.pk.

23674 | 58.65.157.0/24 | MBL-AS | PK | NAYATEL.PK | MICRONET BROADBAND (PVT) LTD.

Because it has someone's personal data in it, and the Guardian respects privacy - unlike the NSA, who use it in presentations. That's the only reason they've redacted anything, if you look at where the slides sit in context.