That's a really, really negative view.
The manna = Christ the bread of life. The rod = Christ the true High Priest. The Tablets = Christ the new Moses, the new Lawgiver.
It’s a very positive view.
Only one day a year did the High Priest enter into the Holy of Holies, on Yom Kippur, the Day of Atonement, and spread the blood on the Mercy Seat for the Atonement of all sin.
It isn’t the Law, nor Providence, nor Authority that saves us from the penalty of sin. It is the Blood, which covers all sin, including the sins of disobedience as represented by the three items in the Ark.
God wasn’t contained in the Ark, rather He dwelt in the Tabernacle, the Dwelling Place, and His presence known by the Shekinah Glory (Glory of His Dwelling).