Dazzling is not the same as blinding. Read the story. We are talking here about the cockpit being illuminated and the pilot being "blinded." I say that is extremely unlikely. The flash will be very disconcerting and cause temporary visual problems (imagine being in the dark for an hour and someone turning on a floodlight), but this is not going to cause permanent blindness or retinal, lenticular, or corneal burns.
Yes, but only for purposes of international law.
A dazzler set on "high" is a blinding weapon.