Simply put: No. Revisions are only reviewed from messages sent through the Design Pickle Platform or in response to our email alerts.
We don't monitor the email used for our Box account and there is a big possibility that your message to that account will get overlooked. In order to make sure your revision request is added to your designer's queue send those notes through our platform.
If you need more help on how to send a revision or provide a feedback to your designer, just go here.