Hold the condescension. I wouldn't be surprised if author is from the place where the following definitely literally happened:
At first, there was 2FA where you could either
1. Download the proprietary app OR
2. Get texted the code.
(i.e. no "do-it-yourself" e.g. Google Authenticator option.)
This means you must have a cell phone of nearly any kind. Mostly reasonable.
Turns out; option 2 cost somebody like half a cent every time it was used and also was far more popular than anticipated.
So they just got rid of 2. That's all, no mitigation.
And now you've DRASTICALLY increased the tech requirements for a major public school; I know of IT instructors in the place who did not actually regularly use a phone "fancy" or new enough to handle the official app.
Utter BS.