People are also free to smash their own hands with a hammer. Someone saying to them “please consider not smashing your own hand with a hammer because you will be in pain and may lose use of it” doesn’t stop them from doing so, it politely and helpfully gives a suggestion as to why they should think if that’s what they really want.
I got lucky with naming my app: "Video Hub App" and despite being generic-enough, organically around 50 people find my software every day. With a name like "Signal" I suspect almost no one will ever find this software unless they already knew of its existence and searched specifically with "Midi Editor" prepended to "Signal" :/
Of course people are free to use any name, no matter how much it sabotages their project. That doesn't mean it's sensible. Names absolutely matter. At work I use a thing called STACK, because it's the best option available to do what we need to do, but the name is a real problem as it makes it really hard to find anything about it.
People are free to use the name they want, whether it is the NSA or an individual, it doesn't matter