> What gets me is this piece comes across as very defensive. Why deride the man missing his elevator when he's on his phone (maybe he's not in the moment because he too is working on a problem) ? Why deride a hoodie at an office party? Why deride Dan for having a different social pattern than you ("Talks too much") especially when it's in line with his career?

Because he's human and he thinks like that and the article isn't self-censoring to appeal to everyone?