It's not just the usual 11-year cycle. As the article explains, the solar shield is weakening so that the maxima and minima of the cycle are lower than they were a few decades ago (see the first graph in the article). This means that more radiation reaches the Earth's own magnetic shield at each point in the cycle compared to the same point in the cycle in previous decades. And that effect will be compounded by the weakening of the Earth's own magnetic field. So for a number of reasons we're all getting higher doses these days. The article doesn't say anything about why solar activity is weakening. So it seems this could just be a temporary fluctuation. The article's first graph shows that there was a weak cycle peaking around 1970 too, then it got stronger and recently weaker again. Are there studies of longer trends? And is there any understanding of the causes inside the sun? The small window of data shown in the article doesn't seem an adequate basis for prediction beyond the next few years.
One thing that you have to understand reading an article like this is that we have been measuring cosmic ray impacts on the earth's atmosphere for fewer than 50 years. In the general scheme of things, that is nothing. If the sun has a 200 year cycle of magnetic pulses, we have not seen but a quarter of the cycle. There has been an uptick of "OMG MAGNETIC FIELD DOOOOOM FLIPS!!!" lately. Since there was not a mass extinction, or even any long term damage to the planet from the last flip, we as biological critters are going to probably be fine. Our tech is going to have a rough time, but tech exists because smart people solved problems and came up with solutions to expected difficulties. Since these problems are solvable, I'm not worried about them per se. We are talking more hardening of orbital satellites and resources, requiring more launches (Thank you SpaceX) and heavier manned capsules and living quarters to compensate for the changing radiation environment.It's not just the usual 11-year cycle.