Ahem. Beam divergence. At the distance an aircraft would be from the laser-pointer, the spot will have spread sufficiently that this is not the case.
Incorrect. Even if the beam has increased significantly in size (to tens of cm), your eye is great at focussing light coming from infinity. This means the intensity at the back of the retina can still be high enough to cause damage. Remember that the pilots are also in the dark so their pupils are fully dilated and their blink reflex may be slowed. With the multi-watt laser pointers available online, its only a matter of time before we see pilots being permanently blinded in these cases. Of course, permanent damage is irrelevant if the plane crashes because the pilot has been temporarily blinded by a lower intensity beam.