I am puzzled by the paper of this groups [1]. The only evidence they present for "change points in the COVID spreading rate" is slightly better fit of the numbe

I am puzzled by the paper of this groups [1]. The only evidence they present for "change points in the COVID spreading rate" is slightly better fit of the number of daily reported cases. In this repository for "Scenario assuming three change points with a weekly modulation of reported cases" they use 16 parameters to fit a smooth line (wavy pattern is because of lower case reports around the weekend). An elephant needs 8 [2]!. I also asked for clarification on stats.stackexchange [3]. [1] http://dx.doi.org/10.1126/science.abb9789 http://dx.doi.org/10.1126/science.abb9789 [2] http://dx.doi.org/10.1119/1.3254017 http://dx.doi.org/10.1119/1.3254017 [3] https://stats.stackexchange.com/q/467920/286008 https://stats.stackexchange.com/q/467920/286008