Imaging all the telemetry, a/b testing, user research, design and dev work that went into this change only for it to not matter at all. We think of FAANGs as infallible but surprisingly often they fail at the basics.
I see this in a different way. I applaud teams that's willing to try out new ideas, especially in those big companies.
I had my doubt on the URL hiding thing but I did see its point too.