Understanding Yisro: Who Was Ready for Sinai?

From Selichos Unveiled by Holzer Seforim.

Why Parshas Yisro is intentionally out of order

Why Moshe’s children’s names appear here—again

Why the Torah keeps calling them “her children”

Why did Moshe send Tzippora away?

How could Moshe's wife and children miss Mattan Torah?

What type of lawsuits did they have in the Midbar at this point?