You both make good points. Though Cathseigh, Skyloft technically isn't that high up. We know that by looking down from were the openings for Link to travel to the surface that they are still only in the Stratosphere. If something was dropped from that height it actually wouldn't impact as hard...
The cloud barrier isn't inpenatrable, in fact the game states it's just loftwings that can't break through it. Humans (Skyloftians) can. Zelda fell from the sky through the cloud barrier and survived which proves that it isn't some cloud barrier with rocks making it inpenatrable. The myth that...