UA Conjurer variant and Summon Undead

[Veldrane]

Yet another question involving Summon Undead... The Conjurer variant in Unearther Arcana has Rapid summoning, that allows to cast Summon monster spells as a standard action rather than a 1 round action.
Now, the Summon Undead spells are Conjurations spells that "functions like Summon Monster, except that you summon an undead creature" (quoted).
Should the Rapid Summoning ability of the UA Conjurer enhance the Summon Undead spells too?

 

[Ogrork the Mighty]

If the RAW specify the summon monster spells then, IMO, that would preclude the use of summon undead (or summon nature's ally) spells.

However, I would probably house rule it to allow all of the above summon spells.