Then on learning how it works, you might realize flapping just isn’t something they’re built to do, and it wouldn’t make much sense if they did flap their wings, given how they work instead.
And yet—damn, they fly fast! That’s impressive, and without a single flap! Amazing. Useful!
At no point did their behavior change, but your ability to understand how and why they do what they do, and why they fail the ways they fail instead of the ways birds fail, got better. No more surprises from expecting them to be more bird-like than they are supposed to, or able to be!
And now you can better handle that guy over there talking about how powerful and scary these “metal eagles” (his words) are, how he’s working so hard to make sure they don’t eat us with their beaks (… beaks? Where?), they’re so powerful, imagine these huge metal raptors ruling the sky, roaming and eating people as they please, while also… trying to sell you airplanes? Actively seeking further investment in making them more capable? Huh. One begins to suspect the framing of these things as scary birds that (spooky voice) EVEN THEIR CREATORS FEAR FOR THEIR BIRD-LIKE QUALITIES (/spooky voice) was part of a marketing gimmick.