"You can't be a startup founder and date, therefore it's better to do a startup if you're already in a long-term committed relationship."
Ummm... how about "I'm single and I'm willing to forgo dating for 'x period of time' until my startup is established and running" OR, even better, "I'm single and I'm willing to forgo dating for now, until my startup exits, I'm rich, and I can live the billionaire playboy lifestyle and take my dates on exotic trips to fun places, etc., etc. yada yada."
Doing a startup means making sacrifices whether you're single or not, this article contributes nothing to value to the discussion of who should and shouldn't be running a startup, IMO. Then again, my take on this discussion is that there really isn't anything to discuss to begin with: You should run a startup... drumroll If you want to run a startup.