sh1n was used most of times as an initiator in KC 2023, but during all of his career before he was a smoker. Considering his consistency, I guess it could be a good move to make him go smokes on most maps
Plus, I don't think you're the most suited to say whether it was a bad move for roles or not, because it's pretty easy to guess why it will not be a bad move, roles considered :
Every structure learns from their past mistakes, and role issues were a big part of what made KC that bad in 2023. They signed two star players, and went low budget on everything else.
The result : ScreaM wants to take over the project, the coach has few control over the players and has no relevance in the matches. That made the team have no synergy and role issues right in the beginning. Nivera is an AWPer that couldn't use Jett, they never knew where to put XMS since he used Chamber in MAD Lions, and sh1n had to fill(because XMS used to be a smoker before Chamber, and because Omen was next best choice for AWP in the comps SCREAM wanted).
Of course most of this is speculation, but I bet I'm REALLY close to the reality.
What did they do : They got Engh, who has a huge importance and voice in the making of the team, and they trialed a huge amount of people, to make sure the roles and profiles corresponded what was necessary. It took so much time that they were one of the last teams in EMEA to lock their roster, if not the last.
And you're still talking about role issues ? Come on, KC staff aren't robots.