The management at TfL, who have never been that bright (referring to the LO embarrassments of 'Waltamstow Central' 'Theobolds Grove' and missing out a stop on the map, can't remember what one it was though) are now nothing short of Stupid.
I definitely do not trust these people with running London's suburban services!
Do you have proof that it was management that made the cock ups with the signage or the printers and then the workers who were putting them up not noticing either?
Getting vinyl wraps for any signage that is already up costs a pittance and as theres so few its really not going to cost more for new signs. You're making out that its going to cost millions when the opposite is very much nearer the truth.