The Wiki: Animal Domain and Conjuration Spell Foci

[Beard Master Flex]

So the wiki says two conflicting things in bullet points right next to eachother:

"Animal Domain increase the summon tier by one like greater spell focus Conjuration does, they do not stack."

"Clerics with Animal Domain and GSF Conjuration will summon an Ancient Elemental with +2 AB, +2 AC, etc when casting Summon Creature IX."

Presently from my experience in comparison of ancient earth ele's cast from two level 30 Healer Clerics, both come in unbuffed at 37AB. One cleric only has ESF Conjuration, the other has animal domain + ESF Conjuration.