LOL you're joking Right.
Pretend you have a laser light and wanted to shine it into the eyes of a plane would you stand
a) In line with the runway on the planes landing approach so yo can get the light "into the cockpit" more easily
b) off to the side where you will have to try and focus the light from below and try and track the plane as it moves across from you.
now think nice and hard. and since light travels really really fast the fact that the plane moves at 300km/h isn't much of an issue. especially if its coming towards you, and you are only tracking it vertical movement.
as anyone who has been in combat can attest.