If the subjects first mentioned could barely scratch the surface of Christianity then, how is the current, under-taught hotch potch called RE going to address the issue today and give youngsters a genuine base on which to make critical life decisions?
RE is based on multifaith non-belief. It sees all religions as wrong but rather quaint. So they can all be 'bunged in together' on the extremely dubious premise, "All roads must lead to God." [All very useful for any in the system who retain any sparse vestiges of belief!]
Logically and ethically this hypothesis is deeply flawed.
Did all roads really lead to Rome?
The purpose of all of this is clear. RE is designed to undermine faith and not as so often dishonestly claimed, 'to promote personal investigation'. Youngsters are not given a starting point.