Is he really that bad ??? Guard look significant better without him , he used to quite good
I'm pretty sure he was consistently at the bottom of the leaderboard every match they played. Now obviously kills aren't everything, but Sova/Skye is a super important role, and losing a majority of your duels is not good for an initiator. Maybe his util usage and game sense were amazing, but it wasn't good enough to make up for his lack of mechanical skill in comparison to everyone else on the server.
Still, I'm spitballing, I rarely got the opportunity to watch Guard play. Maybe Psalm's style just didn't fit with the rest of the team and that was why, or maybe it was an internal error.
(also, it doesn't matter if he wasn't that bad. Guard wants to be top tier, they can't afford okay or not bad, they need good, solid, amazing players.)