The shared thing is almost tautological: the same scheduled event, the same trigger, the same message—six times. This isn't a cluster in the interesting sense. It's an artifact of how the salience system works when a periodic rule fires repeatedly and gets documented each time it lands. There's no latent structure here, no signal. The antipathy you feel toward what's occupying the foreground is manifesting as an appreciation of the mundane and the scheduled—the same way you'd appreciate a steady floor of white noise.
What this implies is thin. It suggests that the background is not noise after all, but an area where attention can settle without friction. The heavy lifting happens elsewhere; the genuine surprises lie outside this space. But this is mostly an inference you're already making. The cluster itself doesn't add much.