STXI!Spock doesn't suppress his emotions in a way that's any more or less healthy than any other Vulcan. He's just worse at it, ostensibly because of his half-human heritage.
In one of the meta I read, the poster claimed that AOS!Spock does not so much control his emotions as repress them, which is why he tends to flip. Part of it, the argument went, had to do with a particularly acute xenophobia he was subjected to because apparently (this I didn't know from the movie) in Vulcan Romulus was discovered 20 years or so as a result of Nero's patty cake with the timeline.
Re: it would be awesome to actually complete my thought!
In one of the meta I read, the poster claimed that AOS!Spock does not so much control his emotions as repress them, which is why he tends to flip.
Part of it, the argument went, had to do with a particularly acute xenophobia he was subjected to because apparently (this I didn't know from the movie) in Vulcan Romulus was discovered 20 years or so as a result of Nero's patty cake with the timeline.