Honestly these "what's my secret?" things are usually having or coming from money or unconditional support from people that have more time or resources, in this case his wife. Which is fine, but when you actually see what they're "amazing wisdom and insight" is I t's always the same bullshit of the organized, go to sleep early, check your email, eat your veggies, stay positive!
Like yeah, those are all great habits and they do help to build more momentum to get you to where you need to be and keep you in the right mindset, but really what gets you to all of those things is financial means, having a job that allows you to do more studies while working or primarily someone or a family that can help carry the burden. Your support network is far more important than setting alarms on your phone.
That said I don't think he was meaning to be offensive with this, just that same kind of ignorant you see where the behind the scenes people don't get the accolades to the degree they should.