It does happen. We can't prevent them if they wish to do so. If it's a pattern of activity, it could affect our future agreement with the sponsorship agreement holder if we feel that they are part of the problem, and that people are moving because they're not being given adequate support.
Refugees arrive as permanent residents of Canada. If they find employment or have a family connection in another part of Canada and make that choice to effectively not use the support that the private sponsorship group wishes to give them, we can't prevent them from doing that, sir.