PLOSone, and other science publications ultimately have control over what data is presented and made available. Certainly the researchers have input and control also, but there is a limitation to what a publisher will include in a journal. In the case of print journals, there are constraints around limiting word count etc. In the case of researchers, they have a responsibility to keep sequence data confidential where appropriate to patients.
Anyhow, researchers can always approach the authors, or access the raw sequence data from NCBI. In this paper it mentions the following.
Data Availability: All sequences and quality scores were deposited into the NCBI Short Read Archive under project accession number PRJNA302040. Additional data are available from the PI Sanjay K. Shukla, Marshfield Clinic Research Foundation, upon request for researchers who meet the criteria for access to confidential data: [CONTACT INFORMATION: Sanjay K. Shukla, PhD, Research Scientist, Marshfield Clinic Research Foundation].
The NCBI SRA is a database of sequence data accessible by researchers...
Sequence Read Archive (SRA) makes biological sequence data available to the research community to enhance reproducibility and allow for new discoveries by comparing data sets. The SRA stores raw sequencing data and alignment information from high-throughput sequencing platforms, including Roche 454 GS System®, Illumina Genome Analyzer®, Applied Biosystems SOLiD System®, Helicos Heliscope®, Complete Genomics®, and Pacific Biosciences SMRT®.