I empathise .. in my own fleet I have the same sort of problem with pilot concerns about exceedances and big brother ... we know about it from the black boxes after the flight ... even if I don't care much about this particular one, most of the pilots do, unfortunately.
However,
(a) folk should be aware than Vmo is not a full-on-must-fix-the-exceedance-before-the-plane-falls-out-of-the-sky sort of thing
(b) presuming the heavy iron folk still descend on the barber pole, modest/nominal Vmo exceedances are a routine fact of life.