To be fair to Huni on that last one, while I agree Lissandra wasn't the best pick (especially facing a team with 3 Bruiser/Tanks two of which only need 1 or two damage items at most), as the casters and analyst desk stated, it could've been used for early game pressure. Now granted, Impact did his thing, and slowed Huni down. And I could see the idea: "We'll use Lissandra, Rek'Sai, Taliyah, Trundle to lock down their team, especially their backline for Jhin to pile on the damage. But, game 5, I have to also blame WildTurtle and Pobelter for as well, on several points.
First off, for WildTurtle's Jhin, if you have an early game focused comp and you're facing an opposing team that has 3 tanky champions, why would you not go Armorpen Jhin? By the time Turtle got his 3 crit items and Last Whisper built, both Impact and Meteos both had Randuin's Omen and Guardian Angel on Ekko and Gragas respectively, which greatly reduces Jhin's potential power in a standard crit build.
Pobelter, by the end, look like he was also starting to wear out, and was overextending. which didn't help matters.
Adrian and Reignover were mediocre that game.
Now granted, Huni isn't blameless, and the split push, I know what Huni was trying, "oh, I'll split push to force them to have to respond to me" but well when C9 was far ahead at that point, they had to power to call that bluff and say "Hey that's fine, we'll let you knock down a tower or two, even grab an inhib. Because we can take out several of your team, and knock down several inhib turrets/inhibitors in that time."