2023 rotation was supposed to be Burnes, Woodruff, Peralta, Lauer, and Hauser. Woodruff missed a huge chunk of the season. Lauer was hurt, and underperformed so bad when he could pitch that he hasn't even found a job yet. Hauser was ok, but battled injury. Wade Miley was good when available, but his health is always a question mark. Fortunately Rea and Teheran filled in pretty effectively when called upon.
Burnes is going to be a big loss, obviously. They are losing the 67 innings that Woody did pitch last year. Hauser had 111 league-average innings that need to be replaced. There are obviously questions marks. But they won 92 games with a hodgepodge rotation behind Burnes last year. If anything, this team has proven that they can find effective starting pitching from other than the ace-type guys. Calling the 2024 group "awful" is a pretty big case of exaggerated hyperbole, IMO.