Carolina's pursuit of Thompson starts to make sense when you consider that Andersen and Raanta are 33 and 34 years old, making their performance uncertain. Both of them are also prone to injuries, which is why Carolina is comfortable with a trio of goalies.
Thompson offers two advantages for Carolina. First, he can be a long-term solution, sharing goalie duties with Kochetkov. Second, he provides a dependable option if Carolina continues to use three goalies.