I get where you're going, but the argument isn't quite right.

A LLM never has and, in their current architecture, never can/could experience suffering or real change of state.

The general and expected case for humans is that capacity. A human my indeed lose capacity, e.g. being braindead and in severe cases we do indeed say that they are not conscious or able to suffer (different argument: some would of course say that is suffering in and of itself)