Got to agree here, there's never really been any visual indicators of a super solider, so its unlikely to be a major plot point now. Though with Karli you could at least add in that "scrawny" looking people could now also be super soldiers.But, that was already true. It isn't like Super Soldiers are giant green brutes, or something obvious. If you were walking down the street, and saw Chris Evans, you'd not say, "Hey, that's a super soldier!" Heck, he himself is extremely fit, but not particularly bulky - he has the build of a guy who works out rigorously. There's millions of them out there.
He gets caught by Karli because he was expecting men to be super-soldiers: On guy on video, and the couple he saw lifting crates.
Yeah I actually really appreciate the realism of that. The simple truth is, science is going to find a way. Though we can lock the genie back in the bottle for a short time, that genie is getting stronger, and each time its going to get harder to stop the inevitable wave of super soldiers. Its less the question of if it will happen, and more "who will control it?"One implication is that it seems to be getting easier to isolate the serum - Erskine needed to bombard it with Vitarays, Isaiah Bradleys serum killed most of the test subjects, Banner triggered something with major side effects using Gamma rays, HYDRA required a slow drip but Nargles working in a container got it to work via a quick shot/swig with no obvious side effects.
Unless Nargle was some superior genius who is to say who the next person will be able to isolate and use...