Of course, if you want to use squid to make teppanyaki, you definitely need a bigger pot and stove, but you can make it smaller, and you don't need to make it whole. And if you cut it smaller, it will be more delicious. However, if there is already a big pot in the house to make a teppanyaki of a king squid, it is really enjoyable.
Because the giant squid is very big, it will not be used to make teppanyaki under normal circumstances, because it will be more or less wasteful. In other words, teppanyaki is not the first choice for the king squid, but it is acceptable if it is used to make teppanyaki.
Generally speaking, this is just an ingredient. How to deal with it depends on your own needs and whether you have such conditions. Personally, I don't think the king squid is so tasty, so I don't particularly want to use this to cook the flat plate.