To me? Olaf is the problem. I don't like Olaf. He is bland and uninspired. He's a Viking berserker, and he has 2 axes, and that's all there is to him. Maybe there are a bunch of people out there who think "Oh yeah! Viking comes here to smash stuff! Yes!!!" but there's only so much purposeless smashing that can be done before I'm ready to move on to the next guy who smashes stuff.
The comic does a pretty bad job of showing what Olaf happens to be doing at any given time, too. I don't think that's the fault of the artist, though...I think it's just that Olaf is hard to depict in motion because he, like Nidalee, is locked into this visual design trap where he has a throwing weapon that he'll never actually throw because then he wouldn't be able to fight with it anymore.
Most of Olaf's design in fights is locked into his "I don't die" mechanic, and the comic artist is clearly struggling to communicate this berserker-rage concept to the reader. What is Olaf doing that makes him not die? Is he jumping around a lot? Is he shrugging off the blows that are aimed at him? Does he heal off any damage that comes in, like Wolverine? In the comic we see all 3 of those things happening without any semblance of consistency.
It reminds me of when I was a kid and I would play pretend with my neighbors and siblings, and one time I was a vampire who could just heal myself up every time they shot me. Everyone complained because no matter what they did, I had an answer. So next time I was the villain, I made it so they could shoot me, and I'd collapse dramatically, because I'm a theater gay. Then, when they came over to investigate, I'd open my eyes and hiss and "eat" someone and make them a vampire.
Instead of just ignoring my "enemies" and doing my own thing, I interacted with them. Even though I was just as invincible and shitty as I was in the first round, I told a story with my actions that they could be a part of. I showed that I was powerful and conniving, but I also showed that I could be attacked and defeated if they had the right kind of weapon (e.g. hit me with something strong so I am knocked out and then drive a stake through my heart).
It's the same idea in League gameplay. When Olaf is able to run at you and ignore your damage and CC, you're just stuck in someone else's story and can't interact with them except to just kind of sit there and eat axe for a few minutes. Being able to exert your own power over Olaf (knock him down, scare him, hurt him, disarm him) makes you feel like you have influence over the situation, even if Olaf is vastly more powerful than you and you end up dying.
I know this is a lot of words for a very simple "Olaf is the problem here," but Idk maybe it's feedback that you guys will take into account for next time :)