I read ahead the raws and skimmed through the WN. From what I can see, it's pretty bad.
The party is a hypocrite. While Est is flourishing in his new party his heart is broken all throughout and his eyes are dead, he's never happy cause he thought Dale was fucking Athena, and what did Dale think about that? "If he really loves her then he should have punched me when he saw me on top of her". When Est saw them at the Guild he was all angry and petty towards Athena (which is justified, given that he thought he was ultimately banished just so Dale and Athena could freely fuck), Dale was like "cool story bro" and didn't even explain the truth. Dale gets all the bitches, including Athena (he has favoritism towards her, and Athena's goal has been Dale all along, we all know how that ends). Surprise surprise Dale is an OP MC who is just hiding his true power because of trauma. Somehow this experienced adult had the knowledge and skill to train people, but didn't do it for some reason when Est's weakness was put into question when they were dismissing him, which would have solved the problem (The problem being Athena thinking Est could die cause he's weak) in the first place.
Now what I said might be wrong or some details might be off but I honestly can't be bothered to read through it all properly anymore. It just feels bad to read it.