Yes, this. It wasn’t hateful or sniping at all. Steve was confronted with something that bore only the vaguest resemblance to electrical wiring as he knew it, so he called it, knowing he was not giving Tony any useful information. And Tony instantly recognized the fault in his own logic, did not snark Steve out as his custom in most situations, and instead guided Steve, who didn’t know what he was looking at, through a process that Steve had to trust was correct and would solve their problem. And it did, because they relied on each other and communicated clearly.
don’t say you’re a writer if you just write fanfiction for your entertainment. you’re only a writer if you kill a bear with a typewriter to appease the spirit of hemingway and slather yourself in ink in tribute to shakespeare, the one true over-penis of literature.