That's because it's not an insinuation. I think if you take off the bad vibes only lens it's pretty obvious that this is a sarcastic way of describing a type of man who is refined and contemplative, probably not quick to anger, cares about their health. And these are painted as desirable traits since this is a guide on how to attain them.

I think you could stand to try to make sense of nuanced irony a little better. You would at least be a little less agitated day to day.