There's no way "All Those Years Ago..." and E:TFA can tie together, since they're both depicting Kirk's first mission as Enterprise captain and they do it in massively different ways. They give different names to Kirk's former command (Saladin vs. Lydia Sutherland), ATYA has Gary Mitchell in a major role while E:TFA has him injured before the story to justify his absence, ATYA has Pike accompany Kirk on his first mission, etc.
Part of the reason I wanted to do The Captain's Oath is because I realized it had been a surprisingly long time since Pocket had done a new version of Kirk's first Enterprise mission, and we didn't have one that could fit into the modern continuity. We had Mere Anarchy Book 1 set near the beginning of his tenure, but that was it for the novels, and there wasn't much in other sources either (IDW had a couple of "near the start" stories, and The Autobiography of James T. Kirk covered it). So that's basically only three versions of the "first mission" story, and only one from Pocket more than 30 years ago, in contrast to at least seven versions of the end of the 5-year mission (including my version from Ex Machina/Forgotten History).
Anyway, I don't think you can read much into Strangers' throwaway nod about McCoy/Piper. Maybe the editor asked Margaret to toss in a passing reference because he was trying to create more of a feel of continuity among the books, but it probably wasn't a major consideration behind the book's plotting.
I guess I should have said maybe the whole McCoy-Piper thing was just a nod to the comic, not that the overall stories could fit. I know writers sometimes will throw a nod to a comic. Maybe Wander Bonnano was just throwing a nod to the comic book story and E:TFA---and I was wondering if maybe even McIntyre was doing something similar with her few lines about Piper possibly coming out of retirement. But I wasn't thinking the overall stories could fit.
It will be interesting to read your book now though. You're right, it seems ever since E:TFA came out novels have avoided talking much about Kirk's first actual mission as captain of the Enterprise. I still have to read Mere Anarchy. The only other early Kirk story was My Brother's Keeper, which flirted around the edges of his taking command but also avoided talking directly about it. It's like novel writers wanted to avoid outright taking on E:TFA, even though elements are already contradicted by WNMHGB. I'm glad to hear your book will finally offer a modern day version of that story.
On that front, did you throw any nods or Easter eggs toward E:TFA in your novel? That you can share anyway
