I tend to agree with you. It was not deep theology, It was a skimming of the OT. Some people might be spurred to do a real Bible study from elements of the film. I didn’t see any of the usual History Channel Heresy and blasphemy. It was a simple view of the old testament with a Willie Nelson look-a-like playing Moses.
A quick story:
Worked with a guy (now retired) who was in an airport with his wife many years ago, when they saw Charton Heston walking toward them - his wife couldn't get the name out so she blurted out: "Look, there's Moses"!
Mr. Heston just gave a quite couteous smile and a wink and walked by.