All it means is you can say "if life is rare, it's not because these specific small chemicals can't be produced". Which is a rather weak thing to say. It doesn't imply life isn't rare, or that further advancement the existence of these small building blocks is easy or inevitable.
I also asked about other things you have conveniently forgotten to mention there.
The overarching falsehood is that identification of biologically relevant molecules at 200 ppb levels, in a soup of tens of thousands of other chemicals, moves the needle any in figuring out OoL.
It doesn't demonstrate the existence of Shakespeare's works, but it's a building block that's good to know exists.