Having someone who's productive in the metric of work throughput doesn't necessarily a desirable employee make.
Particularly, I take issue with his apparent notion that emotional intelligence is only applicable in certain fields: "This isn’t to say that emotional intelligence is useless. It's relevant to performance in jobs where you have to deal with emotions every day, like sales, real estate, and counseling. If you’re selling a house or helping people cope with tragedies, it’s very useful to know what they’re feeling and respond appropriately. But in jobs that lack these emotional demands—like engineering, accounting, or science[...]"
Unless this employee is working for themselves in the dark vacuum of space, they're going to need to talk to people, and anyone who's worked with someone with zero emotional intelligence can tell you what a drag that can be.