I've seen a lot of companies list logos if just a single engineer or team is using the product.
You might as well say Herdr runs on 3 billion devices, go all in! 16 billion devices! Every human on earth installed Herdr twice! (source: study amongst users of herdr, n=5)
I've seen VCs very much encourage this (and shadier) behavior. There's a line between hustling / being an entrepreneur and actively trying to mislead people... clearly we don't all see that line being in the same place (:
edit: to be clear, I didn't mean to make such a broad statement about VCs. I'm sure plenty of people do this on their own