Earlier quoted context omitted.
I just consider them as not supporting 2FA. I'm looking at you, Namecheap. My domain registrar not having two-factor authentication in 2017 is preposterous.
Namecheap does have 2fa... https://www.namecheap.com/support/knowledgebase/article.aspx... Do you mean because they only support SMS based 2fa? Considering they have a drop down menu it's possible they just have not had time to develop the other options?
More than three years seems to me a long development cycle to add TOTP support. Am I being disingenuous to think they just don't care?