I'd report it as incorrect, but I can't even ignore the warning (Firefox, clicking proceed anyway just pops up an additional 'deceptive site' banner that follows me even after navigation away /shrug) - so I can't really justifiabally report it sight unseen. Where does the upload go when your customers use it on their site though? Maybe what's deceptive is that if HN shows an upload area in an iframe or whatever, and…
Also it always opens-up a file popup so it can't be used deceptively.
Regarding the name it's short form of 'Uploader window' like Filer Picker. Really can't do much about that.
Thanks for helping it in reporting it as incorrect.