Yes, let sleeping dogs lie. It has been very rare for anyone with big research endeavors to be on the adcom -- too great a demand on one's time. Furthermore, if you list your engagement with her lab on your application and have a LOR from her (if you list her you'll have to ask for a letter) then she is essentially shut down from having a role in voting for (or against) your admission.
We are expected to decline to interview or have any other say in the admission of people we know.