Is there any suggestion that information and customer service control matters were actually relevant to this incident?
Almost certainly nothing to do with it.
There are
generally 4 different types of roles within a TOC control;
1. Train service controler (making service decisions, dealing with disruption, liaising with all of the below)
2. Information controller (CIS, liasion with stations, other operators, inputting amendments etc.) & potentially social media teams
3. Maintenance controller (may not actually be the TOC, but the fleet manufacturer's staff e.g. Hitachi or Alstom)
4. Resources controller (may be crew or fleet or both).
It appears almost all communications were to do with maintenance controller and the train service controller was awaiting the outcome of this and potentially looking at the impact on the wider service group.