I 100% agree. Focus on them. They're young and presumably healthy, and they seem fairly consistent with their gorgeous elements (no weaknesses like S/K's twist, as far as I know.)
Let V/T move on with their lives if that is what they want to do. No one should be encouraging them to compete if they would be happier not competing. As long as they're unhappily competing they are taking federation and Mozer's time and money away from younger pairs. I'd love V/T to keep competing because they're still fairly young and full of talent, and I think they have a lot more to offer the competitive skating world. But they should not compete if they aren't going to give 100% or if they do not want to.
Push T/M with great choreography and develop a good rivalry between T/M and S/K.
(And T/M should leave Mozer and go to Moskvina to make this even better.)
Moskvina will retire if Kabaguti and Smirnov retire, which is probably considering Kavaguti's injury and their ages.