How is it relevant in any way that this was filmed with an iPhone?
The guy who took the video doesn’t mention his iPhone anywhere, not in the title, not in the video description.
The headline “Smartphone Films Final Discovery Launch From 30,000 Feet Up” would be just as good but complaining about the additional (albeit irrelevant) information in the real headline seems just strange.
The information in the headline that this was taken by a smartphone is certainly valuable – you immediately know that this is not about professional video footage for example from a NASA plane but amateur footage taken from a commercial airliner which is a lot cooler.
Does it really annoy you and all the people who upvoted you so much that the writer of the headline (not even the guy who took and published the video) went that small extra step and mentioned the specific model of the device used to capture the video and not just the general category? Why exactly?