Check out this interesting discussion carefully.
Now, suppose that I am a citizen of Ireland and I reside in a non-EEA country with my spouse, children, dependent parents and an unmarried sibling (who has been a member of the household since some 30 years or so). I wish to move to another EU country (let's say Germany; or, interestingly let's say I moved to Germany for 6 months to practice the Surinder Singh route to come back to Ireland). FACTS: My spouse is genuine, my genuine children are minors, my parents are genuinely dependent on me and I can prove that, and finally my unmarried sibling is a household member since 30 years. Under EU law, it is clear that all of my family is eligible to relocate to an EU country (other than Ireland; or in fact Ireland if I use Surinder Singh). BUT, it seems from that discussion that the rights of Extended family members are not as strong as those for Core family member, which User Relaxed confirms with some examples. Precisely, if they refuse my extended family member's (sibling's) application (even though I provide extensive and sufficient evidence) on say any grounds they like, I would effectively not have anything to claim since my there is no right possessed by my sibling as my other Core family members have in EU legislation. This way, my sibling would be left behind and I could not even argue for him in a court as he doesn't have any right in EU legislation like my other family members (who are "Core") have. I think this is why the lines about Extended family members' rights is a namesake thing. Do you have anything to prove me wrong? Do genuine Extended family member cases always win in the end provided there is sufficient evidence?