Earlier quoted context omitted.
Yes. This, exactly. By patenting this language feature Apple has very clearly stated that they are "making a claim of ownership" as it were of this feature across all languages and non-derivative implementations. ...which is a perfect example of why software patents shouldn't exist in the first place. One could implement this feature in any number of novel, unique ways therefore the patent is nothing more than a clai…
Can't you make a pretty similar argument about all types of patents?
Mechanical devices need patents for the design, as a competitor can easily re-implement an absolutely identical design. It's often clear by inspection how it's made. A different device that accomplishes the same task in a slightly different way doesn't infringe on the patent.
Software already has protection against identical copies through copyright. The key difference is that software patents go farther; they claim to cover the concept. Any implementation of the concept violates the patent. Re-implementing software to accomplish the same mathematical concept in a different way still violates the patent.