Basically you can add wind correction during the takeoff roll but you should remove it when you rotate.
The aircraft that hit the sign may or may not have had crosswind correction. It could have been just really bad luck that at the point he rotated they got a gust and the wing dropped and hit the sign.
I’m sure they have already reviewed the FDR (Flight Data Recorder) so they will know exactly what control inputs were made. The whole aircraft is fly by wire and everything is recorded.
