I had explant and 9 days later almost died due to hematoma. Is this a rare case?

The risks of bleeding are present for any surgery including explantation. Although uncommon, this can occur and should not reflect negatively on your surgeon. 

I am sorry to hear about the rare complication you experienced but am happy to hear that you are doing well now. Unfortunately, significant/serious bleeding may occur after any surgical procedure and is not necessarily an indication that your surgeon performed poorly.  Speak to your surgeon and see if he/she recommends a hematology workup (to see if you may have an propensity for bleeding complications). Best wishes.

This is a potential complication from surgery, but it is rare.  I'm glad you were able to have the bleeding addressed.  It is not necessarily an indication that your surgeon made an error.  Best wishes for a speedy recovery.