Hamilton was actually further to the left of the track when he started that move, it wasn't until Maldanado moved across him did he have to take a much tighter line. Maldanado started on the same line as Schumacher, but unlike Schumacher who saw Hamilton and kept a wide line, Maldanado just turned in and expected Hamilton to stop on a dime.
It is something I've noticed a lot in F1 of late, younger drivers are just turning into the corner without looking and hoping for the best. The result is a lot of carbon all over the track.