For something to be "failed" it needs to have an objective first and then fail at that objective.
I'm rather confident many people have failed at doing what they were trying to using pretty much any kind of technology or software.
If the whitepaper doesn't contain the word "cryptocurrency" or "blockchain" it, naturally, doesn't get to define those terms.
According to Wikipedia, the a cryptocurrency is "a digital currency designed to work as a medium of exchange through a computer network that is not reliant on any central authority, such as a government or bank, to uphold or maintain it".
Bitcoin is a digital currency (in the sense that it's digital and it can be used for the purposes that currencies have), it is a medium of exchange (people buy and sell items and services trough it) and it is not reliant on any central authority (because it is decentralized), not even a government or a bank.
It is a cryptocurrency by definition of the word.
Now, you might think all other cryptocurrencies are to be rejected, and ought to fail.
That is a matter of opinion, which I am neutral about (I do not care).
It isn't a matter of language or ontology.
Are those concept all made up?
Of course they are. All words are, all human concepts are. Concepts that can be communicated are all made up and everything in relation to computers is made up.