Moscovitch has changed careers, and Ilyushechkina has a contract with Cirque, and she's been proposed as a partner for everyone, including boys who have not yet been conceived, not to mention as a coach, so I don't see how either's opportunities have dried up.
They had a stated intention midway through the Olympic season to retire and do shows and other events together. That's what went away. They would have been on the Thank You Canada tour, for example, had they made the Olympic team, I believe.
What you describe is as much them each pursuing passions as it is a necessary 90 degree turn that was accelerated by their decision to retire and split because the opportunities for them as a skating pair had effectively dissipated.