Yes, but that would be a lot less efficient. With a dielectric mirror you can get easily 99.9% of the maximum momentum gain from the light, while with a solar powered laser you would get for the emission the compounded efficiency of the solar panel + storage + laser, so way below 10%. So you would gain around 10 times more impulse from your solar panel absorbing light than from the actual laser.

The final momentum gain is a bit different as the maximum you can gain from a photon is double its momentum (because you can reflect it back with opposite direction).

Also I feel like the bare metal ones would collect a bunch of mud inside filtering through the gaps and affecting the balance.

Here the more pragmatic use of truth is being used, which most of the people would agree in its objectiveness. Either the real person did the call or not.

Even in the philosophical concept of truth different schools of thoughts have different views on its objectiveness. Here is a better resource I think.