For anyone following at home, once you've identified a test as flaky, your next action should be to turn it off. Nothing good comes from keeping flaky tests around. Detect them as soon as you can and either fix them _right there_ or skip them.
I've used this in practice in a company of ~80 developers at the time, applied it because read about it in some Dropbox papers, and have since seen it work in 2 other companies. Skip your flaky tests!!