Minecraft account exploit

Hello so my staff team and I from the Minehq network we saw this guy talking in chat on our server his name is "R" probably on of the most rarest accounts in the game. We then asked how he got these accounts becuase he also has "mr" and then he began to explain its a actually very simple and easy to get non migrated accounts and migrate them.

Steps.
1. Open up google chrome minecraft.net/resetpassword
2. Next you hit f12 on pc or on a mac hit command alt i a
3. Now once that is open in your browser its called the source page code you will see resetpassword/ then you open that string
4. You type any account name in the box on the minecraft.net/resetpassword page then it will say success a email has been dispatched please go check your inbox in the color green
5. After that you go back to your source code and click that resetpassword string and there will be the email a couple lines down that it sent it to and you take that email and register it on the email site ex. Gmail yahoomail
6. After you get the reset email you click the link then you will be redirected to the change the password then you change it
7. Now thats all done you go to mojang and login using email and password then you can eithed buy it premium if it already isnt or if its not migrated you can migrate it.

I thought I would submit this becuase I feel that its abused and not fair for the name change and I hope this doesnt happen in the future.
Thanks,
Purzii
Could I have a minecraft account code so I can buy myself a new account