"a land which flows with milk and honey"?

“a land which flows with milk and honey" refers to the land of Canaan

which God promised to give to the Israelites (Num. 14:8).

But Dathan and Abiram, the sons of Eliab (16:1), who rose up against Moses (v. 2) said

The land of Egypt was “a land flowing with milk and honey” (v. 13).

Aren’t we now rejecting the true God’s promised land, heaven (14:31)

And considering this world as “a land flowing with milk and honey”?