I strongly disagree. Take a look at the video I linked earlier. I'd also recommend you take a look at the new 2.5 builds. A lot has happened since 2013. We're seeing things happen with FXOS that iOS and Android simply can't do.
If you can't explain why, and someone to whom you're trying to promote the OS has to go watch a video and actually download and trial the OS you're talking about, it's probable that none of the features are actually that compelling. If they were, you would remember what they were and you could tell us about them, or at least name them.
Don't be lazy. Tell us why we should care, or stop expecting us to.
If FXOS succeeds, everybody wins. If it fails, everyone loses.
That is FUD bullshit. What does FirefoxOS give me over a real Linux distribution running Firefox?