There is no concern, only unnecessary speculation.
Here's what she did, prior to being Oncosec's CFO -
Vice President and Controller, Secretary and Treasurer for Oncosec.
She's been there since inception.
If they had all the intention to push her out, she wouldn't have been promoted. Why would she waste 2.5 years if internally, there was a vibe that they wanted to push her out?
Case closed. She resigned, like she did with her previous employment 15 years ago.