I think that the victims of this issue are growing, and it is likely that it soon becomes epidemic, simply because bloggers are not, necessarily, IT-educated. It will become much more comfortable to the blogger if he is provided with a straight-forward tool to reach his Settings page and restore it to the state preceding the introduced changes. The technical procedures presented on this platform are for professionals, not for ordinary bloggers who may be highly educated, but not on this subject of programming and the need to delve into the root directory.
For not-qualified bloggers, facing this problem, the best may be to start afresh: Register with wordpress, using your username and password. Then transfer your blogs to your new platform, and forget about the old platform.