Yeah I think it's not only saying that waitlist movement might be tight but that they have no control over who gets admitted from the WLI think the response" If my child was on the wait list, I couldn't get them off" is to emphasize the fairness of admissions. Applicants applying to Einstein are reviewed accordingly and the ADCOM selects based on potential fit/merit and not favoritism. Even her power could not control the out of the cycle for her own child.
All in all, for those of us on the WL I think it's just healthiest to wait for May to come around (which is going to be a slow few weeks) and see what happens then. No reason to be stressed now when there's no reason to...