Nice story, but you missed the point, which is worship of Christ. In one sense, whether her hair was on her head or in her hand, is neither here nor there. The whole example is about her humility and recognition of Who Christ is.
I'm sorry that "your perspective on the world felt like the floor was falling out from under you... and you've been falling ever since." but, with all due respect, you're focusing on the wrong thing.
If Christ is the Savior of all humankind, including your Hindu friend and everyone else, which He is, then culture is a secondary issue. Yes, it has its role to play, and it has a part in understanding Scripture. But it shouldn't get in the way of the essential.
If we accept the Bible, then God is the Creator of the first human and the Savior of all humans. That is the point we want to keep front and center.
This kind of reading "between the lines," focusing on the secondary and throwing the baby out with the bathwater is not the real message of Scripture. Christ is.