I think traction control will spoil the Plus Six personally. But it would undoubtedly be safer for many drivers so I understand from Morgan's point of view that this is a selling point and their way into the US market.
But it does take away one of the reasons I bought my car, which was precisely because the other cars that use the glorious B58 are packed with driver aids and that is not what I wanted.
TC will both attract and deter potential buyers, but if you prefer cars you have to actually drive yourself, then post 2023 you will be looking for a 2nd hand. early model.