That'd be a bold move, considering (1) it may not have helped, and (2) it is possible the thumb incident wasn't how she got infected. It's possible she got infected some other random day in the lab. Maybe she rubbed her eye while wearing a contaminated glove, or breathed in brain flecks through a poor fitting N95, while slicing a particularly dry cryosample.
Good luck getting that research commissioned!
Interesting idea though, and really it'd be a pretty sensible trade-off.