NOBODY'S plan totally works, good or bad....Even though they faced defeat, none of them gave up.... Rey didn't get the teaching she wanted and ended up getting manipulated a few times over...Finn's mission didn't work like he wanted, nor did he destroy the ram.... Poe was basically taking L's the whole movie too... Snoke is "dead" right when he thought he was winning... Ren only wins when he gets to kill his master and even that takeover is rougher than he expected.... nobody really wins in most of the movie.... most of what they do is futile, but it all comes together in the end for both factions in the form of the past drying and a new era beginning for them both... and again, neither side gives up.... it's really a big case study on belief....