It's feasible, as long as you can tolerate a bug for a short time. The advantage is that once you notice a bug, there's less in the way of getting a fix out to production.

And let's face it: we're all tolerating bugs in production all the time.

As an aside, CD doesn't obviate QA or testing. It strongly favours automated testing over the manual flavour, especially during integration, but even then there's nothing stopping you from conducting manual tests on your branch before integration.