I think the Russian Fed would be smart to send Radionova but I also think that it's better for Radionova if she can work on her issues, so that she can come back strong next season.
I think sending Radio would be a wrong thing to do: currently, russian Fed shows some faith in their skaters. For example, when Anna performed badly at euros, she was not removed from World team.
Demanding perfect skates on both Euros and Worlds would backfire - the competition is already too strong, why break the girls nerves even more with a "do 1 mistake and we replace you".