But, had it not been for 3rd party, would Hoffman been in and/or gotten as far as he did?
3rd party is good for sending a message — rarely for actually winning an election.
But 3rd-party is also a civil war, and they rarely work out well. The other side, when you finally win, wants to burn the house down on the way out.
Better to send a rare message like this, and then work within the party, taking it over through the majority rule.