Why do most recordings of “Land of Hope and Glory” not include the stanzas?

Question

Looking around recordings of the British Anthem "Land of Hope and Glory" I find that most of them do not include either one of the two stanzas of:

Dear Land of Hope, thy hope is crowned,
God make thee mightier yet!
On Sov'ran brows, beloved, renowned,
Once more thy crown is set.
Thine equal laws, by Freedom gained,
Have ruled thee well and long;
By Freedom gained, by Truth maintained,
Thine Empire shall be strong.

and

Thy fame is ancient as the days,
As Ocean large and wide:
A pride that dares, and heeds not praise,
A stern and silent pride;
Not that false joy that dreams content
With what our sires have won;
The blood a hero sire hath spent
Still nerves a hero son.

But only have the well-known chorus. Why is that so?

Answer 1

The chorus has simpler words, with a more obvious appeal, and the two verses have quite archaic language. Also, the music for the chorus is what is in Elgar's first "Pomp and Circumstance" March, which is a feature of the annual "Last night of the Proms" concert. The March pre-dates the full anthem.