Do you think Amiya ever had to defuse pre-Undertides Specter? Or is Kal'tsit still in the 'We Do Not Mention The Black Crown' mindset?
Hmmm... Personally I think Kal'tsit wants to keep Amiya outside of Aegirian and Iberian matters altogether, otherwise we'd see her be an active participant in the Abyssal Hunter arc, and yet, while Kal'tsit is deploying plenty of her heavy hitters -- Gladiia, Specter, Skadi, Elysium, herself -- and trying to establish healthy relations with other heavy hitters -- Saint Carmen, Irene, Dario -- it's not as if she's holding back power picks. In that sense, I think bringing Amiya -- a heavyweight herself -- would be a good idea, yet she's absent from the arc. It could merely be logistics, so Amiya can attend to other things, but I mainly think she doesn't want to involve literal child Amiya in even more sordid endeavors if she can help it, because she is already involved in the main story, which is heavy enough (regardless of temporality, of course). That said, you could not possibly find anyone better to defuse Specter if it ever was needed: Besides Skadi and Gladiia, who arrived later to RI than Specter, you really don't have anyone that could possibly contain a rampaging Specter and keep it casualty or collateral damage-free. Specter was literally doing air combos and Devil May Cry shit when actually fighting in a setting where people don't do that shit, plus the way in-universe Abyssal Hunters are on a whole other level in terms of power scaling. A casual, light backhand from hers would knock your entire torso clean off your legs mortal kombat style. What better way to subdue someone like that than doing a little mind-probing to defuse her, especially when she's not inherently hostile to begin with? Amiya quite literally hard counters Specter in the context of a meltdown or a rampage.
Now, from what we know, Specter was always potentially extremely dangerous and never actually dangerous: She behaved erratically but never in a hostile manner to RI, and even her voice lines suggest this is pretty deliberate from Specter (or, rather, Laurentina's inherent influence on Specter), particularly in my opinion one of her in-battle lines when you pick her from your deployment row: "Please let me know the results" (Selecting Operator 2). She's fully acknowledging that she will NOT remember what's about to happen in the upcoming fight you're sending her into, and that she's deliberately going into "combat mode" as per her Files.
My conclusion from all of this is that it probably was never needed, but if it came to that, Kal'tsit would not have hesitated to have Amiya do it, and she would've been able to do it the best out of anyone short of Skadi and/or Gladiia already being around. The 'We Do Not Mention The Black Crown' mindset doesn't really play a role in this one because Specter was already super extra confidential in the first place as well, very very few people knew about Specter in Rhodes Island pre-Stultifera Navis, you had to have super extra special clearance to know about her as per her 1st Operator Record, which included top-level medical staff like Warfarin and Folinic, or being strong and trusted enough in Rhodes Island that they send you to the same extremely dangerous operations that they sent Specter on, like Meteorite. Given the inherent secrecy of Specter, it'd have been fine to have Amiya handle that since no one else would've known anyways -- and being the owner of Rhodes Island, Amiya presumably of course also knew about her.
