According to Google Maps, it is (6) minute walk from Mole to GPP. You are probably be dropped off the tenders at landing #4 or 5. Thus, it is even a shorter walk!
The video is an old one. Since you are not going to keep the fish (The ships don’t want you to bring on board due to health issue), there is no advantage in catching a bunch of fish each cast. Six hooks, is (6) possibility of snag.
Barbra carries Cast-a-Bubble usually. She opens at 9:00 AM, so if you want to use one before then, better take one with you. The foam one if it has lead inside of it for weight is fine.
You have limited time on the island. I think by 4:00 PM you must be on the ship. So depending when the first tenders leave the ship that is how much time for you to fish with no other sightseeing.
My recommendation is to make a short walk from the tender landing to the Mole and start casting for bonito. Especially if there are others who are casting for bonito. After maybe 10 casts and no action, start bait fishing, if you have bait. The Vons opens early. They may even have squid, but definitely have frozen peas. Alternate between casting and bait fishing. Keep an eye on the distance for bonito boil. If you see any, start casting.
Relax and enjoy the surroundings. Make the “catching” part a small part of the whole experience.