The validity of any religious experience is whether the result is a better person.
That, the Torah tells us, is how we bring the heights of Sinai... In 163 BCE, King Antiochus V lifted the siege of Jerusalem.
And then the next parsha, Mishpatim, lists mundane laws regarding personal injury, property damage, returning lost objects, etc.
After the spiritual high of Mount Sinai, why would God "bring us down" (so to speak) with all these minute details of daily life? The spiritual high of Sinai may be nice, but it doesn't solve one problem of the world in which we live.
So if that's true, why did we need Mount Sinai in the first place?