Yes, in spite of his tendency to try to not stand out, it would be in keeping with his cover as a private detective to advertise himself as one.
Spoiler:
Natsuko being brought up at all—especially in a case where the BO is shooting at and killing FBI agents right and left—is noteworthy. It hints that either she or the case she was in (891–893/779–780) hides a truth that Yusaku felt relevant to the current situation... now whether that truth pertains only to the FBI being picked off by the BO in the immediate present or pertains to the Rum arc as a whole? I'd need more info from 1,062 to answer that.
It does seem that Yusaku is talking with Jodie after Andre and at least 1 other FBI agent headed off to that parking lot and got shot at by Gin (we see her sitting in front of the microphone Shinichi/Conan used during Scarlet Showdown, and the rest of the FBI seem to have left the room). So the timeline of this file seems to be:
1) Shinichi/Conan explains how he deduced their code to the FBI & Rum speaks with the BO—they plan to attack the next FBI meeting place.
2) Andre (and at least 1 other FBI agent) head out to the parking lot.
3) Yusaku questions Jodie, seeming to have already deduced (and eager to get confirmation of this, given his clasped hand when he asks for this confirmation) that the one who taught her Japanese was an elementary school teacher (which surprises Jodie, given the stutter at the beginning of her response).
4) The BO ambushes Andre and the FBI (Page 14 is when the FBI agent next to Andre gets shot).
5) Looking at a phone, Yusaku seems to have realized something, and so, too, has Shinichi/Conan (and the file ends with this panel)—this realization, according to the side text, may be the start of Team Shinichi/Conan and the FBI turning things around and putting the BO on the defensive.
If I had to guesstimate, I'd say this Natsuko-related revelation may loop in either Rumi or Mary & MI6 (and those connect to the Kōji case, too, which could loop it in, as well)—in any case,I'd say either of those possibilities is more likely to pan out than Natsuko being a BO member, or something like that.
It does seem that Yusaku is talking with Jodie after Andre and at least 1 other FBI agent headed off to that parking lot and got shot at by Gin (we see her sitting in front of the microphone Shinichi/Conan used during Scarlet Showdown, and the rest of the FBI seem to have left the room). So the timeline of this file seems to be:
1) Shinichi/Conan explains how he deduced their code to the FBI & Rum speaks with the BO—they plan to attack the next FBI meeting place.
2) Andre (and at least 1 other FBI agent) head out to the parking lot.
3) Yusaku questions Jodie, seeming to have already deduced (and eager to get confirmation of this, given his clasped hand when he asks for this confirmation) that the one who taught her Japanese was an elementary school teacher (which surprises Jodie, given the stutter at the beginning of her response).
4) The BO ambushes Andre and the FBI (Page 14 is when the FBI agent next to Andre gets shot).
5) Looking at a phone, Yusaku seems to have realized something, and so, too, has Shinichi/Conan (and the file ends with this panel)—this realization, according to the side text, may be the start of Team Shinichi/Conan and the FBI turning things around and putting the BO on the defensive.
If I had to guesstimate, I'd say this Natsuko-related revelation may loop in either Rumi or Mary & MI6 (and those connect to the Kōji case, too, which could loop it in, as well)—in any case,I'd say either of those possibilities is more likely to pan out than Natsuko being a BO member, or something like that.