Tell me where the goal posts you speak of are defined. You seem to have an antagonistic attitude to discussion that makes it difficult.
Funny, in my mind its you that have an antagonistic attitude, folding your arms saying that it didn't happen or was very exceptional.
My whole point is that i'm yet to see proof that Muslim leaders (even if of what would equal christian duchies, or ruling in act instead of name), was so much less female than Christian Europe was, and that if you're allowed to not count Aceh as had an exceptional run of female leaders, i'm just as allowed to not counting England which have just an exceptional line of female rulers. For an example, Queen Margeret I of Denmark, Norway and Sweden (the instigator of Kalmar Union), strictly speaking was never the Monarch (and certainly not of the Norwegian and Swedish throne), but just a regent (even if between the death of her son and adoption of her great-grand nephew, was regent to an empty throne) that was so competent and shrewd, with lengths of personal power (and the heir so little of the same due to infancy in the case of Olaf, and lack of charisma in case of Eric of Pomerania) that she stayed around until her death, being the effective ruler even after Eric of Pomerania was crowned.
Yes, Female Rulers in the Muslim world was rare, but my core point is that it was no rarer than in Christian Europe, and that any disperency is due to a lack of awareness of them in Western history, paired with a dispropotional interest and awareness to the few female rulers that were around in Europe.