I found pretty conclusive evidence of exactly what @strbean said: the “evidence” here is using scientific data about other health problems and just assuming that they apply to DST. I don’t know if they’re wrong or right, but they are absolutely overstating their claims. This group has an agenda, and they have allowed their agenda to compromise their scientific integrity.
In fact, reading the sources of SRBR’s position paper is where I learned about “social jet lag”. One of the first citations in the paper talks about how severe social jet lag (time changes by more than 2 hours per week) is associated with higher rates of diabetes. The SRBR paper cites this as conclusive evidence that the DST time change is harmful, without discussion.
A single populist news article referencing people with an agenda does not amount to overwhelming consensus, so don’t get suckered by people who’s argument sounds good to you, it may be specious. Note that several of the papers in the article are written by overlapping authors. This article gave you a lot of scientific sounding links to read, but the number of groups it represents is smaller than the number of links, the links are not all independent bits of evidence.
Please don’t take my word for it, please go through the same exercise I did and follow up on SRBR’s references and ask yourself the same question - do their citations support the claims they are making? Maybe you’ll come to a different conclusion, but it looks clear to me that people are painting a picture of scientific authority to support a strong conclusion that the research does not actually back up with data.