Blocked user existence is revealed on login form

Confirmed that indeed this can occur. Marking as a feature request as its not a bug in current functionality of the module

Will there be a resolution for this? I'm seeing this issue

I just applied the diff as a patch in my system. Did composer install/update --lock. I cleared cache. I'm still seeing the message reported here.

I have reproduced this issue and MR-15 successfully applied for me and fixed the problem.
And now it is printing Unrecognised username which i think is better than the username is not activated message.
The changes looks good to me thus moving it to RTBC+!.