This scene plays out from two different perspectives.
The other Hobbets watch as Dougal ignores Kiplyn's question, lets go of the rope and trusts his weight to the web. With a sickening lurch, Dougal immediately drops
ten feet into the void, as the web sags under his weight. Then he trampolines back up again, and with a cartoonish 'booooiiiing' Dougal is oscillating in the web, bobbing up and down like a cork. (If you've ever seen a cellar spider's defensive vibrations,
it's kind of like that.) His situation looks precarious, like a tightrope walker in a hurricane!
Does Kiplyn join Dougal in the web, now that he sees how safe it is?
point-of-view however, the motion of the web is gentle and soothing, like a ship in calm seas. Dougal is confident the web will hold his weight, and there is absolutely no chance he will fall. Spider-Goat didn't half-ass this web; it's strong enough to catch a moose. Does Dougal want to explore a bit, maybe check out the area to the west? From his perspective, it's like he's standing at the bottom of a 50' canyon, and the floor of the canyon is a soft carpet of gently undulating silk. It feels nice
on the soles of his feet.