That sounds very unlikely.

Just look at the Yellow Ajah. Most of them are dismissive of medication. Their work consisted of delving to know how much of the "heal-all" weave they should use. Even someone like Samitsu who could vary the strength of the weave according to ailment was truly exceptional. The Yellows probably study anatomy and pathology, but most are little interested in medicine. Why would they care, they had only a "heal all" cure as solution to everything?

By your reasoning, there should rather be an overwhelming number of women with a background as Healers among the Yellows, but the evidence is that it's precisely what the Ajah has lacked in the last millenia.

Then came a fully trained Wisdom, a woman truly exceptional because a) she trained for medical knowledge and skills very early in life, earlier than most wisdoms b) she got accepted at the Tower despite being too old. Nynaeve is trained to identify symptoms and causes, to deal with each with the proper specific cure. The "heal all" philosophy doesn't make sense to a doctor like Nynaeve, she approached the OP as she studied herbal medications and their interactions. She's developped an intuitive affinity of how the five powers interacted with one another and with the human body, but ultimately it's grounded in her experience of using medication and procedures. Her prior knowledge and experience have guided her in developping her OP skills. She also has one hell of a strength of will and doesn't give up easily. Unsurprisingly, Romanda has noted that there's a fair percentage of former Wisdoms in the new novices who have great potential for five power healing. The Yellows will have to rethink their training. They will need much greater medical knowledge from now on, and the women already too set in their ways and vision of healing might have problems developping the skills for the "new healing".

We also have evidence from the Wilders. Most of them develop a OP shaped by their a great desire for something. For Nynaeve it was more than that, it bordered on obsession.

Other examples: Semirhage's skills rely on extreme precision in her weaving, it's not surprising she's the one who can block a closing gateway, very likely a skill relying on precision. Graendal was obsessed with controlling people, her main skill is in Compulsion.

It's very likely Androl's gateways work so well because his skills for them is much greater, which is grounded in both his prior knowledge/skills and his limitation of being forced to use very small flows. He requires far less OP to achieve great results. The others compensate with "wasting" a lot of saidin on it, Androl relies on precision. It's a skill more naturally present among the saidar users. Women seems to use less saidar for a large gateway than a man uses saidin. Androl's weaving of gateways is just far more performant than anyone else, and the coincidences that he's trained in spatial skills, good with tasks requiring fine motor skills and precision and he's a great traveller knowing the land very well are just too big not to be a huge factor of explanation why he's so good with that weave. Don't forget, we know geographic knowledge counts: we've seen some channelers studying maps before opening gateways, to increase their precision about the arrival location. With areas they don't know well, they've sometimes been miles off target. Spatial skills must count too, especially for Gateways opened in visual range.