I definitely think that contributed to the sub failing a lot quicker. Looking at the number of Missions, it would appear that the Titan made around 5 successful dives down to 3,800m/the Titanic out of a total of 15 missions, all of these being in 2021 or 2022. 2023 they started using Polar Prince and towing the Titan behind the ship, and none of those were successful due to the weather conditions and/or issues with the sub.
2021 Mission I they got down to 1,700m (c.45% of the way there) before having to resurface due to an electrical issue.
I think Stockton was potentially onto something with the design, however it needed way more refinement to confirm it's suitability for that depth, plus ongoing testing and scanning of the vessel. Ploughing on ahead knowing the issues and allowing everyday people to go on it when it was still very much in development was very negligent and short sighted.