No because Stewie's personality is something Liquid need, he's a hype/energetic guy in a team of chill people. Having someone to hype you up is very important, and they've constantly said that it's what was missing on their 2018 lineup. Energy like that is something very valuable to a team that doesn't have it. Also, at IEM Katowice, Grim did worse than Stewie statistically. With that in mind, why on earth would -Stew make more sense than -Grim?