Although I do have a theory as to WHY they are doing it involving a certain event in the 5th book.

IDK since sometimes original show characters are fun (The Thenn and Karsi last episode) but Olly's importance overall bothers me. Esp. how these last episodes he's done nothing but bitch and moan...

Didn't like the look on his face when Sam was saying that sometimes you gotta make choices that other people mightn't agree with but that as long as you know it's the right decision it's the right choice (along that lines Sam said) so I think he might try to sabotage the wilding alliance which would be exciting to see

This is like a case of foreshadowing gone wrong. I like foreshadowing as long as it's subtle. The whole Olly thing is like being bludgeoned in the head with "Look! Pay attention to him! He's going to cause some shit in the next episodes!".

I don't really see the point of him as of now?? Yes, I do have a theory of why they're doing it, and that's fine, but still.