What did he use to control the juubi which killed Neji? Hashi cells, so it's Hashi cells controlling a giant force of nature killed Neji, who literally threw himself into the attack to save people. Yes, clearly that's "soloing." The point is a poorly executed attempt to have ammunition to flame the Hyuga fans with. Unfortunately, as the points you can make are, at best, shallow, it just makes you look like an idiot.
1.He let Obito take the wheel, he was still supporting.
2. True, but the point of the thread is a "hur dur Uchiha's never got soloed" and they latch on a case where an Uchiha used something other than Uchiha power.
3. With Hashi Cells, something not Uchiha.
I don't see how sacrifice when he could have survived otherwise counts as "soloed" but eh. Obito never forced Hinata or Neji to die, they made the attack work on them, not him.