Cooper’s announcement is quite radical. It means an asylum seeker who is accepted for asylum must meet the same criteria as a British national seeking to get a family member to enter the UK.
This will be very difficult for any asylum seeker to meet. It will also make the UK quite unattractive to those asylum seekers who leave their families behind. The documents needed to prove this as well as the level of contribution will be very hard to meet, particularly if you have travelled all the way to France. You will not be able to use it in practice.