No, Bitcoin didn't turn away from it's purpose.
There's nothing change, Bitcoin is still Bitcoin, if you want to use Bitcoin to pay something, you can, at the same time you can also use it as a store of value. It's up to each person who own Bitcoin, different person has a different purpose and the way to use the coins.
Bitcoin is freedom, so, let people choose what they want!
True, every person defines what BTC means to them, but it doesn't mean that it changed. And it's actually great that everyone can do so many things with it.