What makes you think it's willful ignorance over garden-variety ignorance? Being incorrect and thinking you are correct is different from purposefully keeping yourself ignorant.
I have no horse in this race, and willfully being ignorant and spreading disinformation about trans topics willfully is indeed transphobic and warrants aggressive shutdowns, like the comment I'm replying to. But unless I'm missing something I don't see the evidence of bad intent here? It just seemed like a bit of a leap.
Google Authenticator is merely a generic TOTP token storage app. The person you're replying to was pointing out that Google Authenticator, specifically, isn't necessary. There are alternatives, and unless you're using a company-owned device that restricts the apps you can use there is no way for work to dictate which app you use for TOTP tokens.
Duo, Okta Verify, and other 2FA apps that use push notifications and such, are a different beast altogether.