T/M need to leave Mozer and get a coach who is interested in making them the focus and right now in Mozer's group T/M are only Russian team number #3. Despite the fact that V/T don't even seem serious about competing anymore they will always be the main focus of this group and the same thing is true of S/K. T/M are the future of Russian Pairs but the Russian fed seems more interested in older teams who don't even seem to want to compete.
There is only one older team (V&T) that may not be motivated to compete (actually only half of that team). I don't know of any other older team that doesn't want to compete. I am not even sure that V&T are not serious about competing. It's just that their first year back after winning the OGM, they wanted to take it slow this season, but circumstances forced them to compete at worlds and they were mentally not ready for that. Next season will tell us where they stand. I wouldn't draw hasty conclusions based on one performance (at worlds)
S&K are not 'old'. They are the reigning Olympic silver medallists and potentially OGM contenders in 2018. I hope the RSF will not put all their eggs in one basket (S&K). They need to go for a podium sweep in order to win one medal. The pairs field in the world is very competitive now.
I agree that T&M need more political support and coaching. It doesn't help them to be #3 in Mozer's group. I would love to see them go to either Vasiliev or Tamara. The RSF really needs to support Vasiliev who is a proven successful coach.