IV/65 Wallachian & Moldavian - Allies

Allies for the IV/65 Wallachian & Moldavian consist of either:

IV/66 Later Polish (3 elements)

or

both IV/43c Later Hungarian & IV/47 Golden Horde & Successors (2 elements from each)

In the original DBM list IV/65 Wallachian or Moldavian, only the Moldavians were permitted Polish allies, and could also choose from Later Hungarian, Ottoman, in addition to Golden Horde & Successors.

The Wallachians had access to the following allies: Moldavian, Later Hungarian, and Ottoman.

So the Ottomans are now only enemies, and Moldavian allies are no longer allowed for Wallachians. And the Golden Horde & Successors are now linked with the Later Hungarians as 2 allied contingents (each requiring their own PIPs).

Any idea why the Golden Horde & Successors became linked with the Later Hungarian as 'same place, same time' allied contingents?

In DBA 2.0 the Wallachians & Moldavians could choose allies from any of: IV/43ac Later Hungarian or IV/47 Golden Horde & Successors or IV/55ab Ottoman or IV/65 Wallachian or Moldavian or IV/66 Later Polish.

In DBMM army list IV/65:

Only Wallachians:
Moldavian allies - List: Wallachian or Moldavian (Bk 4/65)
Hungarian allies - List: Later Hungarian (Bk 4/43)
Ottoman allies - List: Ottoman (Bk 4/53)
Only Moldavians:
Polish allies - List: Later Polish (Bk 4/66)
Ottoman allies - List: Ottoman (Bk 4/53)
Crim Tartar allies - List: Golden Horde and Successors (Bk 4/47)

So why did the Hungarian allies suddenly come with compulsory Golden Horde allies in DBA v3.0?

Cheers