I guess you have never dealt with the government before
I am not going to go look this up because I dont have the time, you can if you want or someone here more familiar with the ICANN rules off the top of their head can chime in. It's been about a year since I looked at the policy side of this in depth. You can look for ICANN change of Registrant policy or something similar in Google.
I remember there are specific emails we must email and I believe some we either can include or must include. Anyway there are at least two that I know off the top of my head must be sent and it may be up to four. We need to send to the gaining and losing registrant on the WHOIS change, i.e. the new and the old WHOIS owner. If I remember the rules right only the old or losing Registrant can choose the lock status - lock or unlock after change, and only the new Registrant can accept it with the lock or reject it.
This is where it gets a bit fuzzier, we either can or must send the emails to the Account holder as well. If all of these people are you then you are going to get three of four emails. I think we can alert the account holder as well and not must but we chose to because it helps make it an easier process for customers, especially those that do not have access to an old email address or something.
It is ICANN mandated and the process is more or less mandated as well in that you are definitely going to get multiple emails. Personally I think the process is a bit cumbersome, especially for a casual user who doesn't know what a registrant is or something. Having said that, I do appreciate the underlying reason for it as an effort to protect the registrant from having their domains stolen. I also appreciate that we are dealing with a lot of stakeholders and various countries and cultures around the World when ICANN is making decisions for the entire Internet like this and that coming to a conclusion that works for everyone isn't always very easy.
We have changed our process multiple times over the past year as well in response to customer feedback and are trying to get to a place where it is easy for anyone to change their account or registrant and still be in compliance with ICANN.