The user experience between a phone, tablet and computer should be symbiotic. Krb is not a first class thing in the mobile world. So users now hav great Krb experience with Outlook.exe but are typing passwords into Safari at owa.example.com (anywhere you type an AD password that isn't lsass or ADFS is really not good posture)
So, passwords are bad and the password is a key component of krb. Moving away from passwords is a step in the right direction eg OIDC.