Depends on what you define as a ”long way” I guess. But the question wasn’t whether or not the singularity would happen soon or not. It was about whether it would ever happen at all (barring some world ending catastrophe of course.) So I think quantum computing is still relevant in the long run. Plus it was just meant to be one example of ways around the limit of Moore’s law. There are other aspects that determine how powerful a technology can become besides the size of its chips.