I think everyone would push for more family to join, it’s what Labour are trying to subvert because it’s not doable.
Labour MPs have just voted through much stricter family reunification policies, so if 18 people meet a right to family life it’ll be interesting to see if there’s a clash.
Looking up the process of what happens if there’s a clash it ended on this
4. The European Court of Human Rights (ECtHR)
If domestic court avenues are exhausted, applicants can escalate cases to the international court in Strasbourg. If the ECtHR rules that the statutory definition of family violates international law, it would trigger a massive constitutional standoff regarding whether the UK intends to remain a signatory to the convention.1]