That would make sense, after all the whole reason they did this to begin with was to help Amako's mom and our slightly crazy MC is not exactly known to half ass :p
They made a point to mention several times that she was furious and one of the plot points around her is that she is actively going against her predictions. Maybe we shouldn't take her by her exact words right now considering she is in the presence of her captor :p
:EDIT: Well I checked the raws...
They where aiming for her mother, the MC points it out in his mind even that no matter how fast he is he has no guarantee to protect her.
But man ... I read the raws so I knew what would happen but I still want to feed that bastard a bucket of chocolate and see if he has that Carnivore trait.
Yeah regarding that ... he doesn't. This is pretty much just slander the guy repeated, If you remember the early chapters you notice the guy who is always in front and in the thick of it is the commander. There is nobody in front to use as a meat shield because he "is" the Tank in this party ...
...you know for someone that is trying to lay low he was awfully disappointed at the lack of ceremony for receiving that rank. His skills at "bullshitting himself" might surpass his magical arts :p