No longer able to log into Steam version with my non-Steam account. Why do this SE?

[Relynia]

It wasn't really harmless though, people were using it as a way to exploit the game for fraudulent purposes. Sorry that you feel this way, but people were getting hurt because of it.

They were launching steam accounts through non-steam launched XIV is what it seemed like from the post about this, there's no reason to not let windows accounts log in through the same launcher just with a steam launch attached to it.

EDIT:
Also SE why weren't we told that windows accounts would be effected by it also? It clearly sates STEAM ACCOUNTS will be effected but nothing about the other way around.