On the road, failure to dim one's brights ("high beams" if you speak American, "full beams" or "main beams" if you speak British) is hardly "attempted murder" Even deliberately shining them at an oncoming driver is considered a relatively minor infraction. On the seas, shining a searchlight into the pilot house of another vessel will get you a good sized fine, but it is not treated as a crime.
How much more serious than either of these two scenarios is it to shine
Charles Gould's curious invention at an aircraft? (you can call it that instead of futzing with at signs). I'm thinking that the latter is capable, theoretically, under perfect conditions, of causing permanent vision damage whereas neither of the former are. But in reality, barring enhanced, weaponized blinding systems which would entail high power and a stabilized platform, how serious is it in practical terms if some yutz waves a store-bought pointing device skyward?