Well, Chrichton did, when she presented her report on Second Sight's findings. Actually, technically, she didn't get to present her report because Venal snatched it out of her hand and made her sit outside the boardroom meeting whilst she took over. Moaned about Crichton having more regard for her professional loyalties than to the Firm.
As for the other one, McLeod: I have no sympathy for her at all. None. Seems she just grabbed the money and ran. Lovely £2m house in her native Australia.
It always was the case that the corporations had near unlimited funds for lawyers via indemnity insurance, whilst the poor subbie in the street somehow had to find an affordable high street lawyer or find someone on contingency fees (no-win, no-fee) which is very difficult as the lawyer won't take you on unless you have a significantly better chance of winning than 50-50. They don't want to be out of pocket. Meanwhile the PO had the best lawyers in the land and an almost bottomless fund from taxpayer monies to challenge each and every little man.
The other problem of course is that case law states that computers and phone logs, plus other digital evidence is presumed in law to be accurate, so how does the high street lawyer/barrister even begin to challenge the claim that Horizon and Fujitsu were not complete and utter crap? Hence, Venal's reliance on the use of terms such as 'exceptional' and limited in unforeseen circumstances', rather than 'bugs' or 'defects'.
All of this indicates she knew full well of the issue and miscarriages for her to so actively cover them up and try to repress any information that might bring it to light.