Solarin

Ashborn might appear in the flashback scene, but we wouldn't meet him properly until the final season.

Thomas Andre would only be shown off if they really hit the gas and skipped a LOT of material to get to the Guild Conference arc.

They have to cover meeting Mrs Selner, the school dungeon break, and the Japan dungeon break i think. Someone correct me if Im mixing the order any, but Im pretty sure those three arcs can cover another 13 episodes

Fairly accurate listing, no complaints really. Chul Kim was what I like to call a Rank-ist. He views a person's value based entirely on their rank. Though he did have decent perception, even though he didn't know it. Subconsciously, he could see how strong Jinwoo was, but his conscious mind and bigotry interfered with it, ultimately leading to the deaths of his squad and himself.

They were only given 13 episodes to work with. So some content had to be sacrificed to move the story where they wanted.

With how season 1 ended, not reaching Jeju Island in season 2 would have been problematic. And then you would be complaining about that.

Anime VERY rarely do a 1 to 1 adaptation of the source material. Demanding as much is conceited and actually rather ungrateful.