People who entered Trek through the movies may not be ready for 3 dimensional Spock from the series who, in different circumstances, will be pedantic, exasperating, occasionally but rarely actually empathetic, respectful, dismissive, authoritarian, anti-authoritarian, etc etc.... That Which Survives was classic, totally in-character Spock in fussy, hyper-practical command mode. Out of command mode, he defers to Kirk and Kirk sets the tone.
---------------------------
I know people ache to see warm and fuzzy movie Spock, but I don't. As Nimoy said, Spock's brains were a bit scrambled after reconstituting, and the wasn't all there... he had little presence of any kind.
--------------------------
All-business Spock isn't a diplomat. He's trying to save their lives. He's also clueless regarding humans. He's learning, but is still Vulcan.
.