You should probably read again. It's confirmed by well known scene devs that the brick is caused by malicious code put into the launcher.dat by gateway to brick clone users' consoles. But unfortunately the code also bricks legit gateway users.
that being true about the code doesn't rule out that the date and/or time on the 3ds being wrong couldn't also trigger the brick as it might look at the launcher.dat with a different date as a modified file all possibilities can be taken into consideration.