I have so far only completed about 14 minutes of the talk, but I would imagine it to be some sort of relatable analogy which foreshadows what the thesis of the talk is about. The "Christian Parents" are the authority figure and following their rules, lessons, and expectations for dating is a lot like doing only the software engineering tasks that management prioritizes for you. You end up unsatisfied with your life to the point where you become jaded about software (software development is like "dating" in this analogy) instead of learning the skills necessary to wield influence over what you get to work on. I'll watch the rest to see if I'm right.

edit: it's wasn't just about developing software but also using software. You don't have to accept the bad situation you're in (or the bad software you've been given or told to use). Finally, I'll say that while the speaker's comment about conservative christian upbringing isn't a universal one, it is a widely shared one. If you take offense by it maybe take a moment to pause and consider that maybe the way you were exposed to it was probably more balanced than what many others experience, or in the worst case that maybe your negative reaction to it is a sort of defense mechanism that you've learned to shield yourself from confronting the reality that your own conservative christian upbringing was not so good after all?.