Just find out that the "video feed radius" of Wing Loong II is 200km, which should not be the reason to force it to fly at low altitude.IF the laser claim is true, the shooting range would have been within 1.5km (according to your post 3469). I really don't think the FLIR is so bad that the UAV had to fly below 2000 meters while its service ceiling is at 5000 meters.
I think the real reason of a possible "low altitude" flight (if it is indeed shot at that that altitude) is data link. For a long range (and high altitude) patrol, the operator need satellite data link, and I don't think any ME countries are close enough to China that China is willing to lend satellite channels to them. So that left them using ground stations to control, that limit both altitude and range. If it goes