Pengineer
To be honest I'd never heard of it until the cripple 7 came along, and certainly the first few a/c were done by a boeing crew.
The extract from an AMM had a lengthy list of the critical and then essential items that were inspected and from what I can remember no dismantling of conectors is required.(Unless a defect is found.)
Just a guess here but it must be something to do with the bonding of the connectors etc.