Well, I have to guess here, qualify the answer and all that. It depends on the size hole you drill. I would estimate that a 1/8 inch hole would not cause more surface movement, and would be just enough to quietly let the air bubble out. If you put the hole where the maximum water level is during operation you will even have an extra marker for what level it is safe to top off the sump to.
If you mean the black ribbed tubing, no, the flow of water is directed across the sump underwater, rather than down into the sump, minimizing the agitation of the surface. You would not need, or want, to drill the hole if you used this idea.
Aquascape? I'm a crypt farmer.
It's a fine line between fishing and standing on the shore looking like an idiot.
That IS an aquascape, it's titled "The Vacant Lot".