Classical sources regularly used by TT note the difference between this account (Moshe’s exclusion “because of you”) and the account in Bamidbar (the waters of Merivah).
גם בי התאנף ה׳ בגללכם — כאן תולה את הגזירה בעון המרגלים; ובמקום אחר תולה אותה במי מריבה.
Gam bi his’anaf Hashem biglalchem — kan toleh es hagezeirah be’avon hameraglim; uvemakom acher toleh osah bemei Merivah.
“Also with me the Lord was angry because of you” — here the decree is linked to the sin of the spies; elsewhere it is linked to the waters of Merivah.
Custom — parallel accounts of Moshe’s exclusion.
In this retelling Moshe attributes the decree that he may not enter the land to the people’s sin with the spies; elsewhere the Torah links the same decree to the waters of Merivah.