Yes. Yes, it is.
You, and other Rescue supporters, keep missing the point: Tony Stark doesn't build Iron Man suits for anyone except Iron Man.
Period. Full stop. End of story.
Is that selfish? Maybe. But he's made it a point in both the MCU and the comics universe to jealously and vigorously defend his technology. He certainly doesn't want the bad guys to get hold of that tech; he doesn't want business rivals to get that tech and make money off it; he doesn't want ANY government or military to weaponize it; he doesn't even want his best friend to have it. So if he decides to give that tech to his girlfriend because he doesn't want his main squeeze scratching a nail or something, then that cheapens everything he stands for.
Tony Stark: "I am Iron Man." *I.* Am Iron Man. Nobody else. Not even the people closest to him.