Well, no. They're not the same - not because of us, but because of the way society stigmatises us.
We tend to create our own terms and labels because we don't like to be labelled by anybody else. Using terminology like "friends with benefits" or "non-traditional" tends to lead to unsavoury assumptions from others when talking about LGBT relationships. This is just because people like to fetishise and sexualise LGBT people a LOT.
QPR doesn't invite any kind of assumptions. It's safer for some of us, and is just a label to choose.
EDIT:
A good way of thinking about this is, "friends with benefits" isn't a factual term, it's just slang. It's often used in pretty crude contexts. "queer-platonic /homo-platonic" is a formal and less crude way of saying it. People can choose which term to use. They're not exactly the same bc they have different contexts.
For example, if I had to introduce one of my QPPs to a friend of mine, I might say "friends with benefits" but if I was going to introduce them to a colleague or something I might say "queer-platonic partner".