Weren’t welcome is a euphemism for disfellowshipped, as I said in the other thread, I think the reason they were there so early with only a few people is because they were probably having a JC or related discussion and instead of giving proper mental health references, the elders tried their own version of therapy to get them disfellowshipped or reinstated, meaning a tongue lashing of all their shortcomings and a good dose of Bible thumping guilt, tripping a wire in the mentally unstable brain.
Obviously the elders contacted the branch first, given the quick response from the branch and got told not to talk and not publicly disclose why they were there and what actually happened. Basically zip it and let us handle it, they were crazy apostates out for revenge.