I don't think a robot could fill the role of a man in the field. Where I work, engineers make mistakes all the time. We have to compromise ourselves, and double check with a field engineer to see if it's ok. A lot of the time we have sit there and explain basic physics to them for them to understand what we're doing, and that their arguments make no sense. But that's beside the point.
A robot wouldn't be able to make a conscious decision on what to do. Especially when there are so many revisions to our prints, and things don't exactly work out when one package gets revised, and not the rest. Things go on collision courses, and some things straight up make no sense. The robot would just slap stuff on without thinking about it.