Does this short video illustrate intelligence in hermit crabs?

Some hermit crabs have anenomes on the outside of their shells, using them as armor against predators. The anenomes will hit an attacking predator with a painful sting, and apparently the hermit crabs are aware of this. But unlike barnacles and other sea creatures that attach themselves to more mobile sea animals, the hermit crabs attach anenomes to themselves. Even when the hermit crab swaps his old shell out for a slightly larger, more roomy one, he also "coaxes" the anenomes off of his old shell, and onto his new shell. This video illustrates it happening. Is this intelligence or is it purely instinctual? I think its probably a bit of both.

All animals have intelligence. Maybe they can't write books, do things that animals of more higher intelligence can do, but they have intelligence.

Animals lear lots of behaviors that help themselves, I remember this story from a few years ago.
Birds use cigarette butts for chemical warfare against ticks | New Scientist
It is unclear if the fiberglass cigarette butts are used for insulation or as a deterrent to pests.

Ants farm Fungi for food, and even use "pesticides" to protect the fungi from bacteria harmful to the fungi by spreading leaves with antimicrobial properties on them.

For most human activities and behavior (not including our high tech) you can find examples of animals doing the same thing in nature.

Crows could be the smartest animal other than primates - BBC Future

Crow pretty intelligence, some say intelligence of a 7 year old human child