I hope to add the function of "verify the mobile phone to remove the bound email"

Since the email I bound is an out-of-print domain name, the email was hacked on September 1 this year, resulting in the name of the email being tampered with, making the original email name inaccessible forever (because the domain name is live.com).

Originally, the security and verification reliability of mobile phones are higher than emails, why does discord regard emails as a priority verification method?