Destructionator XIII wrote:
a) Picking up the ship with scanners is that much harder due to background noise; the heat of the planet behind them, any light relfecting off the planet, being covered up by the atmosphere, etc.
Due to its own re-entry heat, the Enterprise should be extra-visible when it descends into the atmosphere. Furthermore, the ship is actually in danger of being damaged or destroyed by the re-entry heat; the probe can just sit back to see what happens without endangering itself; if the target gives up and gains altitude, it can attack while the shields are still weakened. This doesn't seem like much of an excuse.
Destructionator XIII wrote:
b) The weapons might not be able to handle atmospheric turbulance and be blown off course at longer ranges; they may not be aerodynamic. Also, going too fast into an atmosphere can destroy projectiles, so it'd have to fly slower.. giving the target more time to escape.
The
Enterprise has used its phasers for precision targeting of sites on a planet's surface on more than one occasion. "Legacy" and "Inheritance" come to mind.
Destructionator XIII wrote:
c) Similarly, atmosphere might poison the weapon's engines or neuter their maneuvering jets so they don't function well in air.
The drone attacked exclusively with beams. If anything might have trouble with atmosphere, it would be the drone itself, which would be all the more reason for it to stay out of the atmosphere.
Destructionator XIII wrote:
d) The weapons might be attenuated by the atmosphere (x-rays, for example, fly very long distances and still be dangerous in space, but will very quickly be scattered and absorbed by an atmosphere) and thus not be able to do damage at longer ranges.
This does not seem to have been a problem for phasers in the incidents cited earlier, and the Minoan weapons were supposedly superior.