I am not sure how to make a feature request for consideration and since you are the one that fixed this I will express it to you and you can perhaps point me in the right direction.
I would be inclined to make a 2FA logon a two step process. Enter the username/password and if it passes that then bring up a 2FA entry as required.
The reason for that is that it can be confusing to a non-technical user to see an item at logon called "secret Key".