This is what has been reported in numerous articles when sexton signed
"The Titans rate Sexton so highly they recently extended his contract until the end of 2024, with the final two years of the deal worth close to a combined $1 million. The contract extension and upgrade was a huge show of faith for a player yet to feature in the NRL."
There are numerous problems in the team and coaching staff and having an experienced half, which is such an important part of the team, is part of the solving the problems in the team and to keep your head in the sand with an inexperienced half has much wider team implications than just the player.
Almost all premiership winning teams have a top line half and having this position covered, it provides the platform for improved team direction, organisation and attack. Something sadly lacking at the moment.