This is a late response but…
The entire point of the article is that this looming threat of cosmic proportions is completely mundane. This star feels nothing. It knows nothing. It is no more sentient than a rock.
This is just a normal, boring pulsar (well, as boring as a pulsar can be). Despite the world of terrors, cosmic and terrestrial, we are still trapped in a universe which just doesn't care, anomalous or not.
I didn't want it to be some encroaching threat trying to kill us because that would have taken away from the intended point big time.
Thanks for the read :)