Oh and the writing. The writing is horrible.
The main character somehow manages to pull up a whole entire grown woman all by himself and he is a child. Yes Hiccup did do stuff that wpuld require a lot of strength to do despite looking so scrawny but he was shown multiple times to have extreme strength like when he knocked out Snotlout with one punch so it made sense that he could pull off such incredible feats of strength cause it was already an established fact that hiccup was very strong. In The Nine Realms however, we see nothing that tells us that this CHILD is strong enough to carry a full grown adult, if anything we're just shown that he's not that strong, but no he just has this magic moment of super strength apparently.