Oh, I've been keeping that fact in mind for every shred of info we've gotten. That doesn't mean it's pretty easy to infer that we're going beyond the Fallout system with the 'multiple' and with Pete's hints.
And while multiple in the strictest sense does mean more than one, in the commonplace sense, it means more than a couple. Why? Because if you're going to say 2 you'll say 2. Or if you're going to say a couple, you'll say a couple. If you want to go beyond that without revealing how many you've exactly got for marketing reasons, you say multiple.
As an off-my-head example, you wouldn't have a coroner who calls two stab wounds 'multiple stab wounds.'
My point is just that, during development while things aren't 100% final, they use the broadest term possible so that if something changes it still (hopefully) falls into that category.
They could plan for a 14 piece armor set, but something may happen and they have to change to a 2 piece.
Ambiguity is a tool for developers when changes happen, because going back on their word is always a bad thing.
To be fair though, going to fallout armor system is unlikely, but its possible and being wary is something we all should be.